Revert "Revert "libdrm: Add rotation property fields""

This reverts commit 38b22bd1973a51910d5719ff0824882556f63e08.

Reason for revert: Build for some targets is broken

Change-Id: Id4e343583230cccfb5c48152501916445c137955
diff --git a/include/drm/drm_mode.h b/include/drm/drm_mode.h
index d3e0fe3..84c0967 100644
--- a/include/drm/drm_mode.h
+++ b/include/drm/drm_mode.h
@@ -205,6 +205,19 @@
 		DRM_MODE_REFLECT_X | \
 		DRM_MODE_REFLECT_Y)
 
+
+/*
+ * Legacy definitions for old code that doesn't use
+ * the above mask definitions. Don't use in future code.
+ */
+/* rotation property bits */
+#define DRM_ROTATE_0   0
+#define DRM_ROTATE_90  1
+#define DRM_ROTATE_180 2
+#define DRM_ROTATE_270 3
+#define DRM_REFLECT_X  4
+#define DRM_REFLECT_Y  5
+
 /* Content Protection Flags */
 #define DRM_MODE_CONTENT_PROTECTION_UNDESIRED	0
 #define DRM_MODE_CONTENT_PROTECTION_DESIRED     1