Enable fmq java backend.

Enable java backend for AIDL HALs which use it in java backend.

Bug: 191825295
Test: make
Change-Id: I08f6c01665e7cd11eebde5370a73cb1c372e5644
diff --git a/common/fmq/aidl/Android.bp b/common/fmq/aidl/Android.bp
index 1ab724f..cebf1ce 100644
--- a/common/fmq/aidl/Android.bp
+++ b/common/fmq/aidl/Android.bp
@@ -24,7 +24,7 @@
     stability: "vintf",
     backend: {
         java: {
-            enabled: false,
+            sdk_version: "module_current",
         },
         cpp: {
             enabled: false,