drm/exynos/decon: Move headers from global to local place

The DECON headers contain only defines for registers.  There are no
other drivers using them so this should be put locally to the Exynos DRM
driver.  Keeping headers local helps managing the code.

Suggested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

drivers/gpu/drm/exynos/exynos5433_drm_decon.c

@@ -21,13 +21,12 @@
 #include <linux/pm_runtime.h>
 #include <linux/regmap.h>
 
-#include <video/exynos5433_decon.h>
-
 #include "exynos_drm_drv.h"
 #include "exynos_drm_crtc.h"
 #include "exynos_drm_fb.h"
 #include "exynos_drm_plane.h"
 #include "exynos_drm_iommu.h"
+#include "regs-decon5433.h"
 
 #define DSD_CFG_MUX 0x1004
 #define DSD_CFG_MUX_TE_UNMASK_GLOBAL BIT(13)

drivers/gpu/drm/exynos/exynos7_drm_decon.c

@@ -25,13 +25,13 @@
 
 #include <video/of_display_timing.h>
 #include <video/of_videomode.h>
-#include <video/exynos7_decon.h>
 
 #include "exynos_drm_crtc.h"
 #include "exynos_drm_plane.h"
 #include "exynos_drm_drv.h"
 #include "exynos_drm_fb.h"
 #include "exynos_drm_iommu.h"
+#include "regs-decon7.h"
 
 /*
  * DECON stands for Display and Enhancement controller.

drivers/gpu/drm/exynos/regs-decon7.h

@@ -1,5 +1,4 @@
-/* include/video/exynos7_decon.h
+/*
- *
  * Copyright (c) 2014 Samsung Electronics Co., Ltd.
  * Author: Ajay Kumar <ajaykumar.rs@samsung.com>
  *