CRT hack

Taken from http://review.cyanogenmod.org/#/c/26333/
fix module compile warnings

Change-Id: I6012f93eed32a4d82177b41230f38daf0f9e9efa
doubleshot_defconfig: set BFQ as default scheduler
doubleshot_defconfig:  make sio the default io scheduler
Change usb max vbus draw.