kernel: bcm2711: Add support for RPi 5 in current and edge kernel

[viraniac]

Description

Add support for RPi5 in our bcm2711 kernel. This is mostly but not entirely based on changes from Raspberry Pi kernel PR 5618. After enabling those options, I noticed that even though hdmi was working, kernel was not able to find the sdcard and usb was also not working. So I had to use diffconfig to compare our configs with the vendor config and enable some more options.

Raising the PR so that others can also play with it as well. Meanwhile I will work on getting Trixie Desktop Image running with mesa 23.3-rc5 from experimental repo. As part of that I will split RPi 5 into separate board config until recent version of mesa is made available in current debian or ubuntu distributions's backport repositories.

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Please also note any relevant details for your test configuration.

• Tested by creating Mantic cli image. HDMI works, wifi works, ethernet is detected but I haven't tested if it works, usb 2 works, haven't tested usb3.

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• Any dependent changes have been merged and published in downstream modules