Figure out what error returned in getLastCallFailCause

( locally bug 38228792 is not reproduciable , have to make such change
to see what error returned in vts-web )

Test: vts-web
Bug: 38228792
Change-Id: Ieccb450324ae6b06d4e3e15726c837a9fede49fe
diff --git a/radio/1.0/vts/functional/radio_hidl_hal_voice.cpp b/radio/1.0/vts/functional/radio_hidl_hal_voice.cpp
index b96269a..5b8b82f 100644
--- a/radio/1.0/vts/functional/radio_hidl_hal_voice.cpp
+++ b/radio/1.0/vts/functional/radio_hidl_hal_voice.cpp
@@ -184,6 +184,7 @@
   EXPECT_EQ(serial, radioRsp->rspInfo.serial);
 
   if (cardStatus.cardState == CardState::ABSENT) {
+      EXPECT_EQ(radioRsp->rspInfo.error, RadioError::NONE);
       ASSERT_TRUE(CheckGeneralError() ||
                   radioRsp->rspInfo.error == RadioError::NONE);
   }