drm/qxl: fix include notation and remove -Iinclude/drm flag

Include <drm/*.h> instead of relative path from include/drm, then
remove the -Iinclude/drm compiler flag.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1493009447-31524-13-git-send-email-yamada.masahiro@socionext.com
diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h
index 5ea290a..3591d23 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.h
+++ b/drivers/gpu/drm/qxl/qxl_drv.h
@@ -36,20 +36,18 @@
 #include <linux/firmware.h>
 #include <linux/platform_device.h>
 
-#include "drmP.h"
-#include "drm_crtc.h"
-#include <ttm/ttm_bo_api.h>
-#include <ttm/ttm_bo_driver.h>
-#include <ttm/ttm_placement.h>
-#include <ttm/ttm_module.h>
-
+#include <drm/drm_crtc.h>
 #include <drm/drm_encoder.h>
 #include <drm/drm_gem.h>
-
+#include <drm/drmP.h>
+#include <drm/ttm/ttm_bo_api.h>
+#include <drm/ttm/ttm_bo_driver.h>
 /* just for ttm_validate_buffer */
-#include <ttm/ttm_execbuf_util.h>
-
+#include <drm/ttm/ttm_execbuf_util.h>
+#include <drm/ttm/ttm_module.h>
+#include <drm/ttm/ttm_placement.h>
 #include <drm/qxl_drm.h>
+
 #include "qxl_dev.h"
 
 #define DRIVER_AUTHOR		"Dave Airlie"