* Package Broadcom Wi-Fi firmware from AOSP
This uses a mirror of AOSP's platform/hardware/broadcom/wlan repo at version
android-8.0.0_r12 (6c8ef5b600cec5d36a54a0276fe8c97b9ab8d6bb).
This is needed as Nexus 6P uses a BCM4358, and the blob available in Alpine's
linux-firmware package is old and vulnerable to Broadpwn. See #513.
* device: angler: enable Wi-Fi and graphics output
Changes:
- Set resolution on bootup
This is copied from the Nexus 5's init script.
- Add Wi-Fi calibration file and change firmware path
This is also based on the Nexus 5's implementation.
- Enable CONFIG_VT and NFS in the kernel
- Explicitly use identity touchscreen calibration
- Rename the touchscreen udev rules
- Enable msm-fb-refresher
