aboot: set default kernel decompress address to ABOOT_FORCE_KERNEL64_ADDR

Set default kernel decompression output address to be
ABOOT_FORCE_KERNEL64_ADDR. Most likely gzip compressed
kernel is used by arm64 kernel, and it is using
ABOOT_FORCE_KERNEL64_ADDR for kernel start address.
It can avoid a unnecessary memmove afterwords.

Change-Id: I905ad395ae14aecc7a011799e8929ccd2ed0f927
1 file changed