lib: add support for LZ4-compressed kernels This patch adds support for extracting LZ4-compressed kernel images, as well as LZ4-compressed ramdisk images in the kernel boot process.

This depends on the patch below
decompressors: add lz4 decompressor module

Signed-off-by: Kyungsik Lee <kyungsik.lee@lge.com>
Signed-off-by: garwedgess <garethwilliams21@gmail.com>