[SimsUiEnhancement] The primary SIMs ListPreference's items show number

Add the number at item's summary at ListPreference

Bug: 318310357
Bug: 298898436
Bug: 298891941
Test: Build pass
atest ListPreferenceTest

Change-Id: I21be34ee73d9532b88443928442def9816ac3bf7

src/com/android/settings/spa/network/NetworkCellularGroupProvider.kt

@@ -318,7 +318,8 @@ fun PrimarySimImpl(
         for (info in subscriptionInfoList) {
             var item = ListPreferenceOption(
                     id = info.subscriptionId,
-                    text = "${info.displayName}"
+                    text = "${info.displayName}",
+                    summary = "${info.number}"
             )
             callsAndSmsList.add(item)
             dataList.add(item)