test: dm: add test for ofnode_for_each_compatible_node()

Check that all matching nodes have the correct compatible and that there
is at least one match.

Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
1 file changed