rockchip: Add support to generate GZIP compressed U-boot binary

Add support for generating a GZIP-compressed U-boot binary with the
help of binman, if CONFIG_SPL_GZIP is selected.

Signed-off-by: Manoj Sai <abbaraju.manojsai@amarulasolutions.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
1 file changed