adding apex for swcodecs

bug: 111407413
Change-Id: I37fb496042cec061eb1244399a70e92ef14311ef
diff --git a/apex/manifest_codec.json b/apex/manifest_codec.json
new file mode 100644
index 0000000..e2bceec
--- /dev/null
+++ b/apex/manifest_codec.json
@@ -0,0 +1,4 @@
+{
+  "name": "com.android.media.swcodec",
+  "version": 1
+}