This removes the dependency on a seperate binary which we
don't seem to have. So, use mksquashfs's -comp lzma to
replace that functionality
[YOCTO #3126]
(From OE-Core rev: 8e82713724dfcb40f2ae24a166ec94f50f8b4cd0)
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>