Add Optimization flags

Change-Id: I2f122d22b32014cf5ccfa720543cf5c4ddf67f4c
Fix build error with latest cm11

Change-Id: Ifa3857abcdd3cc364021d01a5baf2e3ebeb29df2
Update kernel (wifi)

Change-Id: I8df5915a28e2a3967962c36c4e56d08a21272fef