wic/selftest: test_permissions also test bitbake image
existing test case test_permissions use Wic command as standalone
tools to create wic image and check that wic image for permissions.
add extra steps to the test case to also check against image build
using bitbake do_image_wic.
Signed-off-by: Lee Chee Yang <chee.yang.lee@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit
551ce73a90757ba43501fe5cf9ac84a7b77de549)
Signed-off-by: Steve Sakoman <steve@sakoman.com>
