mondrian: initial release with pacman for Android

• Pacman for Android(PFA) is now included in the build 🎉!
  • Default password for shell user is pacman-for-android.
  • shell is in sudoers by default.
  • The installation happens on first boot. It will take a while.
• The default shell for adb shell is now bash from PFA, if it exists.
• Sepolicy fixups for PFA.
• A statically linked bsdtar is now included in the build.

Upstream changes: https://raw.githubusercontent.com/arian-ota/changelog/lineage-20/mondrian.txt

* device/xiaomi/mondrian
915af95 mondrian: overlay: Configure power button and fingerprint screen location [Arian]
8f3da08 mondrian: Drop unnecessary vibrator effects [Arian]
b472093 mondrian: Move audio firmware to proper section [Arian]

* device/xiaomi/sm8450-common
48a593c6a sm8450-common: overlay: Enable multiple vibration strength levels support [Michael Bestas]
443b024e0 sm8450-common: modules from mondrian [Arian]

* frameworks/base
b434bd6e7bd8 udfps: Scale coordinates on action down events [Arian]
e1b824686891 udfps: Trigger onFingerDown with regular action down events too [Arian]

* kernel/xiaomi/sm8450
07a8cd610981 input: misc: qcom-hv-haptics: Scale vibration strength on full range [Arian]
32f7bbb12470 fixup! ARM64: configs: Add mondrian config [Arian]
13d04c9d90c1 arm64: Add config option for wl2866d camera [Arian]