Bump RPi SDIO WiFi firmware to latest version

[sairon]

• buildroot c65b0306bb...b2077df873 (1):

  package/brcmfmac_sdio-firmware-rpi: bump version to 4c1789e

Raspberry Pi kernel 6.6 driver for BCM43455 (used in RPi 3B+/4B) calls new API which uses the DUMP_OBSS feature for channel selection. If it's not preset, it results in drivers reporting errors, e.g.:

brcmf_set_channel: set chanspec 0xd099 fail, reason -52

The RPi OS firmware was updated but the package we use for this firmware contains an old version that lacks this support. Update to latest version synced from RPi upstream to fix the issues. The root cause is explained in [1] by @ragazenta. Both disabling the DUMP_OBSS and updating the firmware makes the errors go away.

[1] raspberrypi/linux#6049 (comment)

Fixes #3367

Summary by CodeRabbit

• Chores
  • Updated the commit reference for a subproject in the buildroot repository.

[coderabbitai]

📝 Walkthrough

Walkthrough

The pull request updates the commit reference for a subproject within the buildroot repository. The previous commit hash c65b0306bbae8a7018a9eaf5d5fdceb8e20de4d9 has been replaced with a new commit hash b2077df8737607aeb7f65f7508b2c577269ec15b. This change indicates a state update for the subproject without modifying any functionality or logic in the main project.

Changes

Files	Change Summary
buildroot	Updated subproject commit from c65b0306... to b2077df8...

Assessment against linked issues

Objective	Addressed	Explanation
Error Identification (3367)	❌	The changes do not address the reported error.
Operating System Details (3367)	❌	No relevant changes made for the operating system context.
Upgrade Confirmation (3367)	❌	No modifications related to upgrade confirmations.
Reproduction Steps (3367)	❌	Changes do not impact the reproduction of the issue.
Log Insights (3367)	❌	No updates provided that relate to log insights.

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📜 Recent review details

Configuration used: CodeRabbit UI
Review profile: CHILL

📥 Commits

Reviewing files that changed from the base of the PR and between 4229332 and 8d61db6.

📒 Files selected for processing (1)

• buildroot (1 hunks)

✅ Files skipped from review due to trivial changes (1)

• buildroot

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[lfdominguez]

On 14.1 show the same error on mi rpi4 8gb