drm/vkms: drop use of drmP.h

Drop use of the deprecated drmP.h header.
Replace it with the necessary includes in the individual .c files.
The header files was self-contained, and extra includes were not added
there.

Signed-off-by: Sam Ravnborg <[e-mail]>
Reviewed-by: Rodrigo Siqueira <[e-mail]>
Acked-by: Emil Velikov <[e-mail]>
Cc: Haneen Mohammed <[e-mail]>
Cc: Daniel Vetter <[e-mail]>
Cc: David Airlie <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]

drivers/gpu/drm/vkms/vkms_composer.c

···
 // SPDX-License-Identifier: GPL-2.0+
 
-#include "vkms_drv.h"
 #include <linux/crc32.h>
+
 #include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_vblank.h>
+
+#include "vkms_drv.h"
 
 /**
  * compute_crc - Compute CRC value on output frame

drivers/gpu/drm/vkms/vkms_crtc.c

···
 // SPDX-License-Identifier: GPL-2.0+
 
-#include "vkms_drv.h"
 #include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_probe_helper.h>
+#include <drm/drm_vblank.h>
+
+#include "vkms_drv.h"
 
 static enum hrtimer_restart vkms_vblank_simulate(struct hrtimer *timer)
 {

drivers/gpu/drm/vkms/vkms_drv.c

···
  */
 
 #include <linux/module.h>
-#include <drm/drm_gem.h>
+#include <linux/platform_device.h>
+
 #include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
-#include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_drv.h>
 #include <drm/drm_fb_helper.h>
+#include <drm/drm_file.h>
+#include <drm/drm_gem.h>
+#include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_ioctl.h>
 #include <drm/drm_probe_helper.h>
+#include <drm/drm_vblank.h>
+
 #include "vkms_drv.h"
 
 #define DRIVER_NAME	"vkms"

drivers/gpu/drm/vkms/vkms_drv.h

···
 #ifndef _VKMS_DRV_H_
 #define _VKMS_DRV_H_
 
-#include <drm/drmP.h>
+#include <linux/hrtimer.h>
+
 #include <drm/drm.h>
 #include <drm/drm_gem.h>
 #include <drm/drm_encoder.h>
-#include <linux/hrtimer.h>
 
 #define XRES_MIN    20
 #define YRES_MIN    20

drivers/gpu/drm/vkms/vkms_gem.c

···
 // SPDX-License-Identifier: GPL-2.0+
 
 #include <linux/shmem_fs.h>
+#include <linux/vmalloc.h>
 
 #include "vkms_drv.h"
 

drivers/gpu/drm/vkms/vkms_plane.c

···
 // SPDX-License-Identifier: GPL-2.0+
 
-#include "vkms_drv.h"
-#include <drm/drm_plane_helper.h>
 #include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_fourcc.h>
 #include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_plane_helper.h>
+
+#include "vkms_drv.h"
 
 static const u32 vkms_formats[] = {
 	DRM_FORMAT_XRGB8888,