Only check result if getUsageSetting Succeeds

Skip checking the result of getUsageSetting if the
call to the method returns an error.

Bug: 319369513
Test: atest VtsHalRadioTargetTest
Change-Id: Ice887a54d029037fa164bb548662dc5b385b3f8d
diff --git a/radio/aidl/vts/radio_network_test.cpp b/radio/aidl/vts/radio_network_test.cpp
index d95de0d..5cb0158 100644
--- a/radio/aidl/vts/radio_network_test.cpp
+++ b/radio/aidl/vts/radio_network_test.cpp
@@ -237,8 +237,10 @@
                             {RadioError::RADIO_NOT_AVAILABLE, RadioError::INVALID_STATE,
                              RadioError::SIM_ABSENT, RadioError::INTERNAL_ERR, RadioError::NONE});
 
-    ASSERT_TRUE(radioRsp_network->usageSetting == UsageSetting::VOICE_CENTRIC ||
-                radioRsp_network->usageSetting == UsageSetting::DATA_CENTRIC);
+    if (radioRsp_network->rspInfo.error == RadioError::NONE) {
+        ASSERT_TRUE(radioRsp_network->usageSetting == UsageSetting::VOICE_CENTRIC ||
+                    radioRsp_network->usageSetting == UsageSetting::DATA_CENTRIC);
+    }
 }
 
 void RadioNetworkTest::testSetUsageSetting_InvalidValues(std::vector<RadioError> errors) {