drm: Drop drmP.h from drm_connector.c

Only needed minimal changes in drm_internal.h (for the drm_ioctl_t
type and a few forward declarations), plus a few missing includes in
drm_connector.c.

Yay, the last stage of the drm header cleanup can finally commence!

v2: Compiles now, with drm/drm_util.h extracted.

v3: Fix up commit message (Sam Ravnborg)
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180905135711.28370-2-daniel.vetter@ffwll.ch

drivers/gpu/drm/drm_connector.c

@@ -20,11 +20,15 @@
  * OF THIS SOFTWARE.
  */
 
-#include <drm/drmP.h>
 #include <drm/drm_connector.h>
 #include <drm/drm_edid.h>
 #include <drm/drm_encoder.h>
 #include <drm/drm_utils.h>
+#include <drm/drm_print.h>
+#include <drm/drm_drv.h>
+#include <drm/drm_file.h>
+
+#include <linux/uaccess.h>
 
 #include "drm_crtc_internal.h"
 #include "drm_internal.h"

drivers/gpu/drm/drm_internal.h

@@ -21,9 +21,14 @@
  * OTHER DEALINGS IN THE SOFTWARE.
  */
 
+#include <drm/drm_ioctl.h>
+
 #define DRM_IF_MAJOR 1
 #define DRM_IF_MINOR 4
 
+struct drm_prime_file_private;
+struct dma_buf;
+
 /* drm_file.c */
 extern struct mutex drm_global_mutex;
 struct drm_file *drm_file_alloc(struct drm_minor *minor);