* Add U-Boot patches for NVMe boot support
Add NVMe to boot order. Fix NVMe support on 64-bit Raspberry Pi devices.
This is useful for Raspberry Pi Compute Module 4 IO Board where a native
NVMe can be plugged in.
* Enable NVMe support for Raspberry Pi 4
Our machine configuration rpi4 and rpi4_64 work on the Compute Module IO
Board. In this configuration a NVMe SSD can be used. Therefor, enable
support for NVMe in the Raspberry Pi 4 configurations.
Note: Regular Raspberry Pi devices will not notice a difference as the
"nvme scan" command will return very quickly and not find a NVMe on the
PCIe bus.
* Use built-in NVMe support in Kernel for NVMe boot support
This reverts commit c92b4b54be.
Pure GPT would be nice, but older EEPROM/firmware version seem not to
handle it properly (before EEPROM 2020-09-03/firmware 2020-10-22). Since
devices still get shipped with older EEPROM we currently moving to pure
GPT would make those devices not booting.
Stick with hybrid mode for now to make sure HAOS boots on all devices no
matter if a new or old EEPROM is in use.
