Update prebuilt su

v1.89

Signed-off-by: Andre Saddler <dresadd09691@gmail.com>

Conflicts:
	prebuilt/apk/Superuser.apk
	proprietary/common/bin/su

Change-Id: Ifef861da453ed5104f5be4076d1a52eea7fbf74c
update to 1.2

Change-Id: I932f4b1e58f458b4914d38b879118fff624b77d9