graphics: add IMapper@2.1

Add necessary methods to protect the framework against crafted
buffer handles.

Bug: 62535446
Bug: 62084097
Bug: 32587089
Test: manual
Change-Id: I11486c0767a90788da9f84c2177202f26c0d9ce1
diff --git a/graphics/Android.bp b/graphics/Android.bp
index 9aea85f..9fa9241 100644
--- a/graphics/Android.bp
+++ b/graphics/Android.bp
@@ -10,4 +10,6 @@
     "mapper/2.0",
     "mapper/2.0/default",
     "mapper/2.0/vts/functional",
+    "mapper/2.1",
+    "mapper/2.1/vts/functional",
 ]