[Celestica] Leh800bcls: Fix AgentTrunkTest crash in multi-NPU environment by passing platform type in config generation

[gang-tao]

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• [ ✓ ] I've ran the linters locally and fixed lint errors related to the files I modified in this PR. You can install the linters by running pip install -r requirements-dev.txt && pre-commit install
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Prevent sai_impl in fboss manifest.......................................Passed

Summary

Fixes a crash in fboss_hw_agent during AgentTrunkTest cases in multi-NPU (Split Agent) environments. fboss_hw_agent0 crashed with 'counter_get() failed(Invalid unit)' during initialization.

Error: counter_get() failed(Invalid unit).
E0810 15:02:20.451190 1978187 SaiApiError.h:67] [switch] Failed to create sai entity SwitchSaiId(17947989248409862144): (InitSwitch: true, HwInfo: [], SrcMac: 66:f6:4d:d1:59:fd, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, MacAgingTime: 300, nullopt, nullopt, nullopt, nullopt
, UseEcnThresholds: true, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt
, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, PfcTcDldTimerGranularityInterval: [(mapping: key: 0, value: 10), (mapping: key: 1, value: 10), (mapping: key: 2, value: 10), (mapping: key: 3, value: 10), (mapping: key: 4, va
lue: 10), (mapping: key: 5, value: 10), (mapping: key: 6, value: 10), (mapping: key: 7, value: 10)], nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt, nullopt): FAILURE

Root Cause

In AgentTrunkTest::initialConfig(), the configuration was generated by calling utility::oneL3IntfTwoPortConfig() without passing the platformType. In multi-NPU environments, omitting the platform type causes the configuration generator to fall back to a single-NPU configuration.

Solution

In utility::oneL3IntfTwoPortConfig() to explicitly pass the platformType (retrieved via ensemble.getSw()->getPlatformType()).

Test Plan

Successfully ran and verified all Trunk tests on Leh800bcls platform (NPU0 and NPU1):

• NPU0

Running all tests took 0:05:53.619048 between 2026-08-10 16:08:21.121951 and 2026-08-10 16:14:14.740999
[ PASSED ] cold_boot.AgentTrunkTest.TrunkCreateHighLowKeyIds (21927 ms)
[ PASSED ] warm_boot.AgentTrunkTest.TrunkCreateHighLowKeyIds (12099 ms)
[ PASSED ] cold_boot.AgentTrunkTest.TrunkCheckIngressPktAggPort (21715 ms)
[ PASSED ] warm_boot.AgentTrunkTest.TrunkCheckIngressPktAggPort (11247 ms)
[ PASSED ] cold_boot.AgentTrunkTest.TrunkMemberPortDownMinLinksViolated (21853 ms)
[ PASSED ] warm_boot.AgentTrunkTest.TrunkMemberPortDownMinLinksViolated (12202 ms)
[ PASSED ] cold_boot.AgentTrunkTest.TrunkPortStats (25375 ms)
[ PASSED ] warm_boot.AgentTrunkTest.TrunkPortStats (15034 ms)
[ PASSED ] cold_boot.AgentTrunkTest.TrunkCapacityUpdatesOnMemberDown (26950 ms)
[ PASSED ] warm_boot.AgentTrunkTest.TrunkCapacityUpdatesOnMemberDown (16058 ms)
Summary:
   PASSED : 10
   FAILED : 0
   SKIPPED : 0
   TIMEOUT : 0

• NPU1

Running all tests took 0:05:50.088523 between 2026-08-10 16:16:37.923524 and 2026-08-10 16:22:28.012047
[ PASSED ] cold_boot.AgentTrunkTest.TrunkCreateHighLowKeyIds (20600 ms)
[ PASSED ] warm_boot.AgentTrunkTest.TrunkCreateHighLowKeyIds (10205 ms)
[ PASSED ] cold_boot.AgentTrunkTest.TrunkCheckIngressPktAggPort (21644 ms)
[ PASSED ] warm_boot.AgentTrunkTest.TrunkCheckIngressPktAggPort (11171 ms)
[ PASSED ] cold_boot.AgentTrunkTest.TrunkMemberPortDownMinLinksViolated (22897 ms)
[ PASSED ] warm_boot.AgentTrunkTest.TrunkMemberPortDownMinLinksViolated (12236 ms)
[ PASSED ] cold_boot.AgentTrunkTest.TrunkPortStats (25240 ms)
[ PASSED ] warm_boot.AgentTrunkTest.TrunkPortStats (16088 ms)
[ PASSED ] cold_boot.AgentTrunkTest.TrunkCapacityUpdatesOnMemberDown (26488 ms)
[ PASSED ] warm_boot.AgentTrunkTest.TrunkCapacityUpdatesOnMemberDown (15404 ms)
Summary:
   PASSED : 10
   FAILED : 0
   SKIPPED : 0
   TIMEOUT : 0

[meta-codesync]

@jchallag has imported this pull request. If you are a Meta employee, you can view this in D115625858.