Corstone, a5ds, and sgi575 were using the meta-kernel, but recent
updates removed support for their non-LTS kernel. Change to using the
respective kernels present in linux-yocto until it can be upgraded to
the latest version.
Change-Id: I63f2e511fe69051c06e6559950b798c1371cc8e9
Signed-off-by: Jon Mason <jon.mason@arm.com>
Signed-off-by: Ross Burton <ross.burton@arm.com>