display: Add reserved size and status check to MetaData_t

* Move from fixed array reserved region to variable reserved
  region size
* Add bool arrays to indicate whether metadata has been set using
  Gralloc4 indices
* Replace metadata->operation with bool arrays for
  gralloc4/qdMetaData compatibility

CRs-Fixed: 2730848
Change-Id: Id52aac70c23ee4b39db185861f951bb909831afb
diff --git a/gralloc/Android.bp b/gralloc/Android.bp
index 4882e79..c7339c2 100644
--- a/gralloc/Android.bp
+++ b/gralloc/Android.bp
@@ -13,7 +13,7 @@
          "libgralloctypes",
          "libhidlbase",
          "libhardware",
-         "android.hardware.graphics.mapper@4.0"
+         "android.hardware.graphics.mapper@4.0",
     ],
 
     srcs: ["QtiGralloc.cpp"],