test/kms, pm: use drm_open_any_master

These tests require DRM master right, so make sure they have it from the
beginning. This gives an early indication if another DRM master is running
and makes the given test skip (with a proper explanation of the reason)
instead of exiting with error.

Signed-off-by: Imre Deak <imre.deak@intel.com>

tests/kms_render.c

@@ -230,7 +230,7 @@ igt_main
 	igt_skip_on_simulation();
 
 	igt_fixture {
-		drm_fd = drm_open_any();
+		drm_fd = drm_open_any_master();
 
 		bufmgr = drm_intel_bufmgr_gem_init(drm_fd, 4096);
 		devid = intel_get_drm_devid(drm_fd);