drm: replace open-coded ARRAY_SIZE with macro

[airlied: fixed one more new one added since]

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/drm_edid_modes.h

@@ -471,7 +471,7 @@ static const struct minimode est3_modes[] = {
 	{ 1920, 1440, 60, 0 },
 	{ 1920, 1440, 75, 0 },
 };
-static const int num_est3_modes = sizeof(est3_modes) / sizeof(est3_modes[0]);
+static const int num_est3_modes = ARRAY_SIZE(est3_modes);
 
 static const struct minimode extra_modes[] = {
 	{ 1024, 576,  60, 0 },
@@ -482,7 +482,7 @@ static const struct minimode extra_modes[] = {
 	{ 2048, 1152, 60, 0 },
 	{ 2048, 1536, 60, 0 },
 };
-static const int num_extra_modes = sizeof(extra_modes) / sizeof(extra_modes[0]);
+static const int num_extra_modes = ARRAY_SIZE(extra_modes);
 
 /*
  * Probably taken from CEA-861 spec.
@@ -771,5 +771,4 @@ static const struct drm_display_mode edid_cea_modes[] = {
 		   2492, 2640, 0, 1080, 1084, 1094, 1125, 0,
 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
 };
-static const int drm_num_cea_modes =
-	sizeof (edid_cea_modes) / sizeof (edid_cea_modes[0]);
+static const int drm_num_cea_modes = ARRAY_SIZE(edid_cea_modes);