Convert vintf_fragments into vintf_fragment module(s)

Convert vintf_fragments into vintf_fragment module(s) so those manifests
can be handled in the same way between KATI defined system image and
Soong defined system image.

Bug: 322089980
Test: aosp_cf_x86_64_phone build succeeded
Change-Id: I389fd0f3bcb372fbd2ff9062b5d99384f08cb115

Author: kiyoungkim-gg

services/stats/Android.bp

@@ -7,6 +7,11 @@ package {
     default_applicable_licenses: ["frameworks_native_license"],
 }
 
+vintf_fragment {
+    name: "android.frameworks.stats-service.xml",
+    src: "android.frameworks.stats-service.xml",
+}
+
 cc_library_shared {
     name: "libstatshidl",
     srcs: [
@@ -38,7 +43,7 @@ cc_library_shared {
     local_include_dirs: [
         "include/stats",
     ],
-    vintf_fragments: [
+    vintf_fragment_modules: [
         "android.frameworks.stats-service.xml",
     ],
 }