gralloc1: Add RAW12 format

CRs-Fixed: 2022067
Change-Id: I628387ead990d08e4f7cf61908ee13490d9af982
diff --git a/libgralloc1/gr_buf_mgr.cpp b/libgralloc1/gr_buf_mgr.cpp
index b471764..6432820 100644
--- a/libgralloc1/gr_buf_mgr.cpp
+++ b/libgralloc1/gr_buf_mgr.cpp
@@ -794,6 +794,7 @@
     case HAL_PIXEL_FORMAT_YCrCb_420_SP_ADRENO:
     case HAL_PIXEL_FORMAT_NV21_ZSL:
     case HAL_PIXEL_FORMAT_RAW16:
+    case HAL_PIXEL_FORMAT_RAW12:
     case HAL_PIXEL_FORMAT_RAW10:
     case HAL_PIXEL_FORMAT_YV12:
       return true;