Functionality already present: SNR reporting

[google-labs-jules]

The user requested to add functionality similar to a specific commit from OpenHD/rtl88x2cu which adds SNR reporting features.
Upon inspection of the current codebase, it was found that the requested features (SNR reporting per path, RSSI per path, and public queue free page count) are already implemented.
Specifically:

• include/rtw_recv.h contains s8 ofdm_snr_latest[4];.
• core/rtw_recv.c initializes ofdm_snr_latest.
• hal/hal_com.c updates ofdm_snr_latest with SNR values.
• core/rtw_debug.c contains proc_get_rssi_a, proc_get_rssi_b, proc_get_snr_a, proc_get_snr_b, and proc_get_pubq_free_page.
• os_dep/linux/rtw_proc.c registers the corresponding procfs handlers.

No changes were made to the codebase.
Note: Compilation was attempted but failed due to the lack of kernel headers in the sandbox environment, which is expected. However, static analysis confirms the presence of the code.

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PR created automatically by Jules for task 6686867307547508903 started by @raphaelscholle

[google-labs-jules]

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