Enable navbar choice through init script
Bump kernel version to 0.286

Change-Id: Ic9cfa95eba0df6813ba6395803c6fbd330746da8
Fixed Makefile of the compressed image to better support Linaro GCC toolchains
Bump kernel version to 0.287

Change-Id: I78f74925ae40301da766466e46f7b091e410865a