Bump version to 10.1.1-RC0

This should've been done almost 2 months ago when we cut 10.1.0...

Change-Id: I628d688cddb6d5cb48f1fb97fb834664b47e2053
vendor/mk: merge Cyanogenmod

Change-Id: I662c23c4d13e63cff64dad0a91016ed19fc4498a