Add Display P3 DATASPACE enums

Need to define Display-P3 dataspace.
Test: grep HAL_DATASPACE_DISPLAY_P3 system/core/include/system/graphics-base.h

Change-Id: I0a2015eb714f9e6f8c2e8cff40b008e58570ba55
diff --git a/graphics/common/1.0/types.hal b/graphics/common/1.0/types.hal
index e65b6ac..ebdba77 100644
--- a/graphics/common/1.0/types.hal
+++ b/graphics/common/1.0/types.hal
@@ -1011,6 +1011,24 @@
 
 
     /*
+     * Display P3
+     *
+     * Display P3 uses same primaries and white-point as DCI-P3
+     * linear transfer function makes this the same as DCI_P3_LINEAR.
+     */
+    DISPLAY_P3_LINEAR = STANDARD_DCI_P3 | TRANSFER_LINEAR | RANGE_FULL,
+
+
+    /*
+     * Display P3
+     *
+     * Use same primaries and white-point as DCI-P3
+     * but sRGB transfer function.
+     */
+    DISPLAY_P3 = STANDARD_DCI_P3 | TRANSFER_SRGB | RANGE_FULL,
+
+
+    /*
      * Adobe RGB
      *
      * Use full range, gamma 2.2 transfer and Adobe RGB primaries