AAPT: Include empty locale in getLocales

AAPT dump badging relies on the empty locale being
present when there are no locales.

Bug: 38192121
Test: manual
Change-Id: I2f5c431d4fd07c525a2318e7b93be0e93c32448f
diff --git a/libs/androidfw/ResourceTypes.cpp b/libs/androidfw/ResourceTypes.cpp
index f661f29b..c3ae7a4 100644
--- a/libs/androidfw/ResourceTypes.cpp
+++ b/libs/androidfw/ResourceTypes.cpp
@@ -5997,16 +5997,14 @@
     char locale[RESTABLE_MAX_LOCALE_LEN];
 
     forEachConfiguration(false, false, includeSystemLocales, [&](const ResTable_config& cfg) {
-        if (cfg.locale != 0) {
-            cfg.getBcp47Locale(locale, mergeEquivalentLangs /* canonicalize if merging */);
+        cfg.getBcp47Locale(locale, mergeEquivalentLangs /* canonicalize if merging */);
 
-            const auto beginIter = locales->begin();
-            const auto endIter = locales->end();
+        const auto beginIter = locales->begin();
+        const auto endIter = locales->end();
 
-            auto iter = std::lower_bound(beginIter, endIter, locale, compareString8AndCString);
-            if (iter == endIter || strcmp(iter->string(), locale) != 0) {
-                locales->insertAt(String8(locale), std::distance(beginIter, iter));
-            }
+        auto iter = std::lower_bound(beginIter, endIter, locale, compareString8AndCString);
+        if (iter == endIter || strcmp(iter->string(), locale) != 0) {
+            locales->insertAt(String8(locale), std::distance(beginIter, iter));
         }
     });
 }