hikey: Add TARGET_COMPRESSED_KERNEL var to support compressed Image.gz-dtb kernels

Add support to boot compressed Image.gz-dtb kernels conditionally
based on the TARGET_COMPRESSED_KERNEL build variable

Change-Id: I4511bfb12608dea02a599347c18dc16545d61739
Signed-off-by: John Stultz <john.stultz@linaro.org>
1 file changed