OmniLib: Add java library internal for use by services

Fix the frameworks/services loop with Omnilib when it depend of it

Change-Id: Id2532938beaf74f99d7fd2518b34d2b6150c4148
diff --git a/Android.bp b/Android.bp
index 3eddf86..7d83217 100644
--- a/Android.bp
+++ b/Android.bp
@@ -38,6 +38,7 @@
     ],
 }
 
+// Used by frameworks
 filegroup {
     name: "omnirom-internal",
     srcs: [
@@ -46,6 +47,17 @@
     path: "src",
 }
 
+// Used by services
+java_library {
+    name: "omnirom.internal",
+    srcs: [
+        "src/org/omnirom/omnilib/utils/*.java",
+
+         // For the generated R.java and Manifest.java
+        ":omnirom-res{.aapt.srcjar}",
+    ],
+}
+
 java_library {
     name: "OmniLib",
     installable: true,