vibrator: Fix malformed blue print file

Test: yes
Change-Id: I7162e5ba2f03b21b4ecdf4fd524ffee84bf932eb
diff --git a/vibrator/1.0/default/Android.bp b/vibrator/1.0/default/Android.bp
index 6d82a19..4dd00dd 100644
--- a/vibrator/1.0/default/Android.bp
+++ b/vibrator/1.0/default/Android.bp
@@ -24,3 +24,4 @@
         "libhardware",
         "android.hardware.vibrator@1.0",
     ],
+}