hammerhead: update prebuilt kernel

bda1e8a backlight: lm3630: clean and refactor code
761f89f arm/dt: hammerhead: changed backlight brightness mapping function

Change-Id: I85d8049d0d6d552aa94fe816696d59389858e2da
1 file changed
tree: b2697f162dd6d8651217acb48df6a50b83ee9177
  1. zImage-dtb