display: Add Support for Rec.2020

- Add Rec2020 CSC in qdMetadata for limited/full range
- Expose CSC as #defines in gralloc private header to
  help GFX decouple from the display headers

Change-Id: I90ee2708275bf1a37ece0fce2f0867dfad64e39a
Crs-fixed: 1074164
diff --git a/libgralloc/gralloc_priv.h b/libgralloc/gralloc_priv.h
index 4c059cf..738b63f 100644
--- a/libgralloc/gralloc_priv.h
+++ b/libgralloc/gralloc_priv.h
@@ -166,6 +166,13 @@
 #define HAL_IGC_NOT_SPECIFIED     0
 #define HAL_IGC_s_RGB             1
 
+/* Color Space: Values maps to ColorSpace_t in qdMetadata.h */
+#define HAL_CSC_ITU_R_601         0
+#define HAL_CSC_ITU_R_601_FR      1
+#define HAL_CSC_ITU_R_709         2
+#define HAL_CSC_ITU_R_2020        3
+#define HAL_CSC_ITU_R_2020_FR     4
+
 /* possible formats for 3D content*/
 enum {
     HAL_NO_3D                      = 0x0,
diff --git a/libgralloc1/gralloc_priv.h b/libgralloc1/gralloc_priv.h
index f282070..0695a60 100644
--- a/libgralloc1/gralloc_priv.h
+++ b/libgralloc1/gralloc_priv.h
@@ -159,6 +159,13 @@
 #define HAL_IGC_NOT_SPECIFIED 0
 #define HAL_IGC_s_RGB 1
 
+/* Color Space: Values maps to ColorSpace_t in qdMetadata.h */
+#define HAL_CSC_ITU_R_601         0
+#define HAL_CSC_ITU_R_601_FR      1
+#define HAL_CSC_ITU_R_709         2
+#define HAL_CSC_ITU_R_2020        3
+#define HAL_CSC_ITU_R_2020_FR     4
+
 /* possible formats for 3D content*/
 enum {
   HAL_NO_3D = 0x0,
diff --git a/libqdutils/qdMetaData.h b/libqdutils/qdMetaData.h
index 725e094..2b0b8c6 100644
--- a/libqdutils/qdMetaData.h
+++ b/libqdutils/qdMetaData.h
@@ -38,6 +38,8 @@
     ITU_R_601,
     ITU_R_601_FR,
     ITU_R_709,
+    ITU_R_2020,
+    ITU_R_2020_FR,
 };
 
 enum IGC_t {