Skip testIsVoicemailNumber if not Telephony capable

Bug: 23238993
Change-Id: I494e71406642e9672d675f00fa6914666c88db75

tests/tests/telecom2/src/android/telecom/cts/DefaultDialerOperationsNoPermissionsTest.java

diff --git a/tests/tests/telecom2/src/android/telecom/cts/DefaultDialerOperationsNoPermissionsTest.java b/tests/tests/telecom2/src/android/telecom/cts/DefaultDialerOperationsNoPermissionsTest.java
index 4ca6bcd..b3044a2 100644
--- a/tests/tests/telecom2/src/android/telecom/cts/DefaultDialerOperationsNoPermissionsTest.java
+++ b/tests/tests/telecom2/src/android/telecom/cts/DefaultDialerOperationsNoPermissionsTest.java
@@ -119,6 +119,9 @@
     }
 
     public void testIsVoicemailNumber() throws Exception {
+        if (!TestUtils.shouldTestTelecom(mContext)) {
+            return;
+        }
         verifyForReadPhoneStateOrDefaultDialer(new Runnable() {
             @Override
             public void run() {