drm/mediatek: direct include of drm.h in mtk_drm_gem.c

Do not rely on including drm.h from drm_file.h,
as the include in drm_file.h will be dropped.

Signed-off-by: Sam Ravnborg <[e-mail]>
Reviewed-by: Sean Paul <[e-mail]>
Acked-by: CK Hu <[e-mail]>
Cc: Philipp Zabel <[e-mail]>
Cc: Matthias Brugger <[e-mail]>
Cc: [e-mail]
Cc: [e-mail]
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]

drivers/gpu/drm/mediatek/mtk_drm_gem.c

···
 
 #include <linux/dma-buf.h>
 
+#include <drm/drm.h>
 #include <drm/drm_device.h>
 #include <drm/drm_gem.h>
 #include <drm/drm_prime.h>