After changes in openembedded-core@1a4ab9f, image licenses moved one
directory down into ${SSTATE_PKGARCH} subdir.
(From yocto-docs rev: ea9675f079cef919a9d13ab12d095144b2eae6ab)
Signed-off-by: Ilya A. Kriveshko <iillyyaa@gmail.com>
Reviewed-by: Michael Opdenacker <michael.opdenacker@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>