drm/msm: COMPILE_TEST support

With a simple stub, we can get COMPILE_TEST support.

Signed-off-by: Rob Clark <robdclark@gmail.com>

drivers/gpu/drm/msm/Kconfig

@@ -2,8 +2,7 @@
 config DRM_MSM
 	tristate "MSM DRM"
 	depends on DRM
-	depends on ARCH_MSM
-	depends on ARCH_MSM8960
+	depends on (ARCH_MSM && ARCH_MSM8960) || (ARM && COMPILE_TEST)
 	select DRM_KMS_HELPER
 	select SHMEM
 	select TMPFS