Build script: use newer toolchain
Revert CAF bluetooth stack
Revert VilleC2 battery driver
Linux 3.0.78

Signed-off-by: Sultanxda <sultanxda@gmail.com>
Linux 3.0.79

Signed-off-by: Sultanxda <sultanxda@gmail.com>
Linux 3.0.80

Signed-off-by: Sultanxda <sultanxda@gmail.com>