Rename AppCompat + Preferences Theme styleable

When two libraries have the same named styleable, it's
a bit ambiguous which one is actually used. Some build
tools break too. Fixed by making sure that each libraries
styleable is uniquely named.

BUG: 27105780
Change-Id: I1156efcb71fb9dde3458e03c68ed891f170ad575
5 files changed