The `msm-fb-refresher` updates the screen for msm based devices. It is
not needed for all devices, so we had some extra code in the initramfs,
that would only add it when the `deviceinfo_msm_refresher` variable was
set. However, we are able now to add files to initramfs hooks, so this
hack can be removed and simplify everything.
Changes:
* Remove `deviceinfo_msm_refresher` from all deviceinfos
* Add sanity check for it
* Move all `deviceinfo` sanity checks to an extra function
* `postmarketos-mkinitfs`: remove code for msm refresher
* `msm-fb-refresher`: add initramfs hook
- Currently just graphics along with weston tested
- Depend on firmware-adreno from device-lg-hammerhead
- Reduce dep of linux-firmware
- Just pull qcom, bracm and adreno firmware
* Rename deviceinfo variable flash_methods to flash_method
* Update pmb.config.deviceinfo_attributes / add sanity check
* Add test case that parses all deviceinfo files
* Added redscreen kernel patch and xorg config
* Moved weston and x11 specific config to subpackage
* Removed deviceinfo_weston_pixman_type for hammerhead
* Added msm-fb-refresher to hammerhead
