Build: Switch to Magisk as the built in root [2/2]

Pretty much identical to https://github.com/DirtyUnicorns/android_build/commit/2871a7b10b1ae6b6bdda049e33421ab37057f4d1

Modified and updated for TWRP 3.0.3-x by @nathanchance

Change-Id: Ic0cc0b6e96723a87298edb5cded9f6ef93c05b9d
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Corey Edwards <ensabahnur16@gmail.com>

Conflicts:
	tools/releasetools/ota_from_target_files.py
2 files changed