Upgrade SUN7I-CT kernel.
 - Kernel now include the firmware, doesn't need the temporary package anymore.
 - Some work on NAND install, doesn't work like i want, need much more work to have
   something that i like.
 - Add a better fex for the CubieTruck.
 - CubieTruck Kernel now boot with the performance governor enabled to speed up things
   (rootfs switch it back to ondemand once booted).
 - Some bug fix.