Format Android.bp files

with:

  cd hardware/google/gfxstream
  bpfmt -w .

Bug: n/a
Test: presubmit
Change-Id: I7ddc78f076eacf8459b588d08caee470900e692e
diff --git a/guest/gralloc_cb/Android.bp b/guest/gralloc_cb/Android.bp
index 9565d00..7fa1b97 100644
--- a/guest/gralloc_cb/Android.bp
+++ b/guest/gralloc_cb/Android.bp
@@ -30,6 +30,6 @@
     ],
     export_header_lib_headers: [
         "libcutils_headers",
-        "libqemupipe-types.ranchu"
+        "libqemupipe-types.ranchu",
     ],
 }