Export AIDL files as a filegroup for framework.jar

Put AIDL files into a filegroup so they can be imported as sources
for framework.jar.

Test: m checkbuild
Change-Id: I1a5335384e9291af1f26e7418f15fcfa082ee356
diff --git a/storaged/Android.bp b/storaged/Android.bp
index 35868bb..2c7dea1 100644
--- a/storaged/Android.bp
+++ b/storaged/Android.bp
@@ -61,7 +61,7 @@
         "storaged_uid_monitor.cpp",
         "uid_info.cpp",
         "storaged.proto",
-        "binder/android/os/IStoraged.aidl",
+        ":storaged_aidl",
         "binder/android/os/storaged/IStoragedPrivate.aidl",
     ],
 
@@ -100,3 +100,11 @@
 
     static_libs: ["libstoraged"],
 }
+
+// AIDL interface between storaged and framework.jar
+filegroup {
+    name: "storaged_aidl",
+    srcs: [
+        "binder/android/os/IStoraged.aidl",
+    ],
+}