Fix Crash due to runtime exception from CarrierManager

Fix: 329754400
Test: atest passed
Change-Id: I6065160dcd15d547241dd8bc0f9f99c336c59625

src/com/android/settings/network/telephony/CarrierConfigManagerExt.kt

@@ -36,4 +36,7 @@ fun CarrierConfigManager.safeGetConfig(
     // Settings should not assume Carrier config loader (and any other system services as well) are
     // always available. If not available, use default value instead.
     persistableBundleOf()
+} catch (e: RuntimeException) {
+    // The reason is same with above.
+    persistableBundleOf()
 }