add slicingConfigChanged api

add slicing config changed api to be sent
by modem whenever there is a slice config change

Test: build, vts tracked using bug 214043323
Bug: 194332512
Change-Id: I86e8ab8ac5aa782b099434f1a04ce314631b7f4e
diff --git a/radio/aidl/vts/radio_data_indication.cpp b/radio/aidl/vts/radio_data_indication.cpp
index 4d3c539..61e079e 100644
--- a/radio/aidl/vts/radio_data_indication.cpp
+++ b/radio/aidl/vts/radio_data_indication.cpp
@@ -37,3 +37,8 @@
                                                       const DataProfileInfo& /*dataProfileInfo*/) {
     return ndk::ScopedAStatus::ok();
 }
+
+ndk::ScopedAStatus RadioDataIndication::slicingConfigChanged(
+        RadioIndicationType /*type*/, const SlicingConfig& /*slicingConfig*/) {
+    return ndk::ScopedAStatus::ok();
+}