Bluetooth: bluedroid support in bluesleep
bluesleep: fix brain fart

There are still issues with BT, but this works a lot better than
it used to.
trace: another GCC 4.6 fix
u8815: switch back to noop

faaaaaaar better.
board-msm7x27a: I'm caving to peer pressure

Because everybody loves it so, save ~20MB memory.
u8815: disable CPU idle

Battery is worse with this.
Merge remote-tracking branch 'origin/cm-10.1' into ubuntu