IMapper 5 - the Stable C approach

Test: make VtsHalGraphicsMapperStableC_TargetTest VtsHalGraphicsAllocatorAidl_TargetTest

Change-Id: I910b27f388e3fb7261425dd4b2133885c05edd37
diff --git a/graphics/allocator/aidl/Android.bp b/graphics/allocator/aidl/Android.bp
index 9bdc7a6..098ef17 100644
--- a/graphics/allocator/aidl/Android.bp
+++ b/graphics/allocator/aidl/Android.bp
@@ -14,7 +14,7 @@
         enabled: true,
         support_system_process: true,
     },
-    vndk_use_version: "1",
+    vndk_use_version: "2",
     srcs: ["android/hardware/graphics/allocator/*.aidl"],
     imports: [
         "android.hardware.common-V2",