Add IRadioIms AIDL

Bug: 216387835
Test: build & flash
Change-Id: I9f5d3117265187453b53ef9dd381bb3b600f3082
diff --git a/radio/aidl/Android.bp b/radio/aidl/Android.bp
index 44b1fd9..3eb6bf2 100644
--- a/radio/aidl/Android.bp
+++ b/radio/aidl/Android.bp
@@ -198,3 +198,24 @@
     },
 }
 
+aidl_interface {
+    name: "android.hardware.radio.ims",
+    vendor_available: true,
+    srcs: ["android/hardware/radio/ims/*.aidl"],
+    stability: "vintf",
+    imports: ["android.hardware.radio"],
+    backend: {
+        cpp: {
+            enabled: false,
+        },
+        java: {
+            sdk_version: "module_current",
+        },
+        ndk: {
+            vndk: {
+                enabled: true,
+            },
+        },
+    },
+}
+