Remove the build error due to ccache.

We have ccache built in CROSS_COMPILE, which mkuboot.sh uses to determin
if the cross-compile mkimage is present. Since ccache is always present,
mkuboot thought the ${CROSS_COMPILE}mkimage is present. Thus the
failure.

Change-Id: Id91c9280583a94fce7354270417562c9cf2a3c53
1 file changed