sensors: gnss buffer usage optimalisation

[niewim19]

• increase queue size to fully cover buffer
• return "updated" only on GGA messages (they contain new fix)

JIRA: PP-449

Description

Motivation and Context

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Chore (refactoring, style fixes, git/CI config, submodule management, no code logic changes)

How Has This Been Tested?

• Already covered by automatic testing.
• New test added: (add PR link here).
• Tested by hand on: (list targets here).

Checklist:

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing linter checks and tests passed.
• My changes generate no new compilation warnings for any of the targets.

Special treatment

• This PR needs additional PRs to work (list the PRs, preferably in merge-order).
• I will merge this PR by myself when appropriate.

[gemini-code-assist]

Code Review

This pull request modifies the GPS event update logic to return status codes directly from switch cases and increases the UBX inbox size. It also adds a new UBX configuration command to set UART1 output to NMEA only at 115200 baud. A review comment points out that the write call for this new command incorrectly includes the null terminator from the string literal, which may cause issues with the binary protocol; it is recommended to use sizeof(...) - 1 instead.

[gemini-code-assist]

Using sizeof() on a string literal includes the implicit null terminator (\0). Since UBX is a binary protocol, sending an extra 0x00 byte after the message is incorrect and may be misinterpreted by the receiver. It is recommended to use sizeof(...) - 1 to send only the actual message bytes.

write(ctx->filedes, UBX_PREMADE_UART1_OUT_NMEA_ONLY_115200, sizeof(UBX_PREMADE_UART1_OUT_NMEA_ONLY_115200) - 1);

[github-actions]

Unit Test Results

10 514 tests   - 29   9 854 ✅  - 27   55m 13s ⏱️ + 2m 1s
   649 suites ± 0     658 💤  -  4 
     1 files   ± 0       2 ❌ + 2 

For more details on these failures, see this check.

Results for commit e5cd178. ± Comparison against base commit f20ef15.

This pull request removes 30 and adds 1 tests. Note that renamed tests count towards both.

phoenix-rtos-tests/libc/exit ‑ aarch64a53-zynqmp-qemu:phoenix-rtos-tests/libc/exit.stdlib_exit.atexit_few_calls
phoenix-rtos-tests/libc/exit ‑ aarch64a53-zynqmp-qemu:phoenix-rtos-tests/libc/exit.stdlib_exit.atexit_register_inside
phoenix-rtos-tests/libc/exit ‑ aarch64a53-zynqmp-qemu:phoenix-rtos-tests/libc/exit.stdlib_exit.atexit_two_nodes
phoenix-rtos-tests/libc/exit ‑ aarch64a53-zynqmp-qemu:phoenix-rtos-tests/libc/exit.stdlib_exit.stream_flush
phoenix-rtos-tests/libc/exit ‑ aarch64a53-zynqmp-qemu:phoenix-rtos-tests/libc/exit.unistd_Exit.SIGCHLD_sent
phoenix-rtos-tests/libc/exit ‑ aarch64a53-zynqmp-qemu:phoenix-rtos-tests/libc/exit.unistd_Exit.chk_if_exits
phoenix-rtos-tests/libc/exit ‑ aarch64a53-zynqmp-qemu:phoenix-rtos-tests/libc/exit.unistd_Exit.close_streams
phoenix-rtos-tests/libc/exit ‑ aarch64a53-zynqmp-qemu:phoenix-rtos-tests/libc/exit.unistd_Exit.exit_status_waitpid
phoenix-rtos-tests/libc/exit ‑ aarch64a53-zynqmp-qemu:phoenix-rtos-tests/libc/exit.unistd_Exit.new_parent_id
phoenix-rtos-tests/libc/exit ‑ aarch64a53-zynqmp-qemu:phoenix-rtos-tests/libc/exit.unistd_Exit.no_atexit
…

phoenix-rtos-tests/libc/exit ‑ aarch64a53-zynqmp-qemu:phoenix-rtos-tests/libc/exit