utils: Update AOSP forking script

Change-Id: Ifbb68a5940c079b8b0898e6a7d66df92d9077c28

Conflicts:
	utils/fork_aosp.sh
RomFactory 1.1.1

Change-Id: Id2e0a6b82c21c623a54ed6a83432e5c5ea8b1ff8