Update makefiles for hwtypes.h

Test: pass
Change-Id: I8e17eb8fec5d2f04c526476a866c8dd54ccb556c
diff --git a/graphics/common/1.0/Android.bp b/graphics/common/1.0/Android.bp
index 99370e8..25995cd 100644
--- a/graphics/common/1.0/Android.bp
+++ b/graphics/common/1.0/Android.bp
@@ -28,6 +28,7 @@
     ],
     out: [
         "android/hardware/graphics/common/1.0/types.h",
+        "android/hardware/graphics/common/1.0/hwtypes.h",
     ],
 }