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.

Bug: 69917341
Test: m checkbuild
Change-Id: I22e765ccf88832b1b192b42b2161898d9a6e5b2c
diff --git a/Android.bp b/Android.bp
index 5941cd9..db761e4 100644
--- a/Android.bp
+++ b/Android.bp
@@ -65,9 +65,7 @@
     defaults: ["vold_default_flags"],
 
     srcs: [
-        "binder/android/os/IVold.aidl",
-        "binder/android/os/IVoldListener.aidl",
-        "binder/android/os/IVoldTaskListener.aidl",
+        ":vold_aidl",
     ],
     shared_libs: [
         "libbinder",
@@ -187,4 +185,13 @@
     ],
 }
 
+filegroup {
+    name: "vold_aidl",
+    srcs: [
+        "binder/android/os/IVold.aidl",
+        "binder/android/os/IVoldListener.aidl",
+        "binder/android/os/IVoldTaskListener.aidl",
+    ],
+}
+
 subdirs = ["tests"]