Fix result does not get correct locale tag.

Bug: b/255559017
Test: atest Pass
Test: FDR DUT and insert VZ sim, then complete SUW flow. No crash of SUW.
Change-Id: I1f999162c66b246b484d3ef5c358f48400eb70e9
diff --git a/src/com/android/phone/PhoneInterfaceManager.java b/src/com/android/phone/PhoneInterfaceManager.java
index aa6f7f9..71771cf 100755
--- a/src/com/android/phone/PhoneInterfaceManager.java
+++ b/src/com/android/phone/PhoneInterfaceManager.java
@@ -7851,7 +7851,7 @@
                 if (!localeFromDefaultSim.getCountry().isEmpty()) {
                     if (DBG) log("Using locale from subId: " + subId + " locale: "
                             + localeFromDefaultSim);
-                    return matchLocaleFromSupportedLocaleList(localeFromDefaultSim);
+                    return matchLocaleFromSupportedLocaleList(phone, localeFromDefaultSim);
                 } else {
                     simLanguage = localeFromDefaultSim.getLanguage();
                 }
@@ -7864,7 +7864,7 @@
             final Locale mccLocale = LocaleUtils.getLocaleFromMcc(mApp, mcc, simLanguage);
             if (mccLocale != null) {
                 if (DBG) log("No locale from SIM, using mcc locale:" + mccLocale);
-                return matchLocaleFromSupportedLocaleList(mccLocale);
+                return matchLocaleFromSupportedLocaleList(phone, mccLocale);
             }
 
             if (DBG) log("No locale found - returning null");
@@ -7875,13 +7875,12 @@
     }
 
     @VisibleForTesting
-    String matchLocaleFromSupportedLocaleList(@NonNull Locale inputLocale) {
+    String matchLocaleFromSupportedLocaleList(Phone phone, @NonNull Locale inputLocale) {
         String[] supportedLocale = com.android.internal.app.LocalePicker.getSupportedLocales(
-                getDefaultPhone().getContext());
+                phone.getContext());
         for (String localeTag : supportedLocale) {
-            if (LocaleList.matchesLanguageAndScript(
-                    inputLocale, Locale.forLanguageTag(localeTag))
-                    && inputLocale.getCountry().equals(
+            if (LocaleList.matchesLanguageAndScript(inputLocale, Locale.forLanguageTag(localeTag))
+                    && TextUtils.equals(inputLocale.getCountry(),
                     Locale.forLanguageTag(localeTag).getCountry())) {
                 return localeTag;
             }