Link statically with libutils and libstagefright_foundation

Removes external dependencies on things like RefBase and Vector, with
minimal code size increase.
Bug: 67908544
Test: manual

Change-Id: Iee05844db83fc8e55f63ec1a7a7fa466ac09345c
diff --git a/media/extractors/amr/Android.bp b/media/extractors/amr/Android.bp
index bd8a00c..d962b93 100644
--- a/media/extractors/amr/Android.bp
+++ b/media/extractors/amr/Android.bp
@@ -9,6 +9,9 @@
     shared_libs: [
         "liblog",
         "libmediaextractor",
+    ],
+
+    static_libs: [
         "libstagefright_foundation",
     ],