v1.22

Raspberry Pi 4 UEFI Firmware v1.22

• Fix settings not being stored or being corrupted on reset (#78, #82) [tianocore/edk2-platforms@94e9fba tianocore/edk2-platforms@ae6c236]
• Add internal changes for the eventual support of CM4 & Pi400 [tianocore/edk2-platforms@100e360]
• Fix type of PMU GSIV in GICC (#103) [tianocore/edk2-platforms@734fed7]
• Switch back to the old coloured logo [tianocore/edk2-non-osi@3d1bb66]
• Fix cursor appearing on top of logo (#115) [tianocore/edk2@b585238]

Important Note: The start4.elf and fixup4.dat used in this release are the 2020.12.01 ones, as using newer versions broke xHCI initialization (raspberrypi/firmware#1518, raspberrypi/firmware#1495) with newer revisions of the Bcm2711 SoC. Do not be tempted to use more recent versions of start4.elf, as, unless you are using an old Pi 4 model, this will most likely break USB support.