drm/panel: drop drmP.h usage

Drop use of the deprecated drmP.h header file.

While touching the list of include files:
- Divide include files in blocks of linux/* video/* drm/* etc.
  Be consistent in the order of the blocks
- Sort individual blocks of include files

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Stefan Mavrodiev <stefan@olimex.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20190526180532.1641-3-sam@ravnborg.org
diff --git a/drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c b/drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c
index 2a25a91..3ac04eb 100644
--- a/drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c
+++ b/drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c
@@ -4,18 +4,21 @@
  */
 
 #include <linux/backlight.h>
+#include <linux/delay.h>
 #include <linux/gpio/consumer.h>
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/regulator/consumer.h>
 
-#include <drm/drmP.h>
-#include <drm/drm_crtc.h>
-#include <drm/drm_mipi_dsi.h>
-#include <drm/drm_panel.h>
-
 #include <video/mipi_display.h>
 
+#include <drm/drm_crtc.h>
+#include <drm/drm_device.h>
+#include <drm/drm_mipi_dsi.h>
+#include <drm/drm_modes.h>
+#include <drm/drm_panel.h>
+#include <drm/drm_print.h>
+
 struct kingdisplay_panel {
 	struct drm_panel base;
 	struct mipi_dsi_device *link;