Additionally switch mainline kernel from qcom_fg to bq27xxx_battery_i2c.
While at it simplify the deviceinfo_modules_initfs_alpine list to
exclude implicit dependencies that mkinitfs can find itself to make the
line length a bit less unwieldy.
[ci:skip-build] Already built successfuly on CI in MR
While this provides the ability to use ModemManager, there are quite a
lot of issues with the driver still; keep it enabled in kernel for now
and let users "modprobe ipa" if they want to test modem features
whichever side effects that may cause including:
- Making the device nearly impossible to poweroff or reboot
- Making the UI lag noticeably more due to some interconnect bandwidth
issues
Now the user can choose to install the proprietary firmware along with
the downstream or a (close to) mainline kernel.
[ci:skip-build]: already built successfully in CI
These files are just a copy paste of the regular OnePlus 5 ones with
adjusted codename, display name and screen height.
The used kernel is linux-oneplus-msm8998 (shared with cheeseburger).
