Fixed tab in packages.mk.

Test: none
PiperOrigin-RevId: 174217434
Change-Id: Ibaf55bdede96ecce4674186f174f61127b4c2648
diff --git a/packages.mk b/packages.mk
index 3339635..b79e632 100644
--- a/packages.mk
+++ b/packages.mk
@@ -1,6 +1,6 @@
 # Update this when adding a new AndroidManifest.xml.
 LOCAL_AAPT_FLAGS := \
-  com.android.bubble \
+	com.android.bubble \
 	com.android.contacts.common \
 	com.android.dialer.about \
 	com.android.dialer.app \