Revert ""Reverting X3RIL for now""

This reverts commit 44eacf5fa86cc780d938170eec725807b29ffca5.
Revert "Add support for Button Brightness"

This reverts commit b4f04c43510eccf1a75a1edb55f5aaa8ba7788c5.
Ril:Fix Proccess Unsolicited