n1: Use English touchscreen update splash

Change-Id: I628059b1f5f15e35deb823f96f330568eac47be7
n1: Write bootloader to update splash logo

Change-Id: I1999d93911b7fc1882683b663cd3d757719b14e0
n1: Move releasetools to common

Change-Id: Ia88285b75cef623be15fb5c99dc587425e987022