Add apex available to libutils

Bug: 145922701
Test: m -j
Change-Id: I32a15359bc2f97675f8b5e7e112978667f43bf4f
diff --git a/libutils/Android.bp b/libutils/Android.bp
index efa4c41..3311793 100644
--- a/libutils/Android.bp
+++ b/libutils/Android.bp
@@ -159,6 +159,11 @@
             ],
         },
     },
+
+    apex_available: [
+        "//apex_available:anyapex",
+        "//apex_available:platform",
+    ],
 }
 
 cc_library {