aconfig: Add codegen for java

Add codegen for java skeleton

Bug: 279485059
Test: atest aconfig.test
Change-Id: Ia0481cec9c2e137e88e9a77d1b82412529b64adc
diff --git a/tools/aconfig/Android.bp b/tools/aconfig/Android.bp
index e762f33..9617e0e 100644
--- a/tools/aconfig/Android.bp
+++ b/tools/aconfig/Android.bp
@@ -23,6 +23,7 @@
         "libprotobuf",
         "libserde",
         "libserde_json",
+        "libtinytemplate",
     ],
 }