device-xiaomi-santoni: use mdss-fb-init-hack to refresh the display, and
swapfile to fix "out of memory" when loading proprietary blobs.
I have tested the kernel, USB Networking, Display, USB OTG, Wi-Fi (with
proprietary blobs) works fine, through I haven't figured out how to get
Bluetooth and among of other stuff to work. Audio works. For more
information on how to get Wi-Fi and Audio to work, check out the wiki
page for this device, I have updated it.
[ci:skip-build]: already built successfully in CI
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
