Replace TelephonyManager methods for mobile data

TelephonyManager had a minor refactor of some of the methods revolving
around mobile data. Change code in Settings to use the new ones instead.

Bug: 169367013
Test: existing unit tests, manual
Change-Id: I7ebae37373d53fb2c59b6b546232dbddf77398d4

tests/robotests/src/com/android/settings/network/telephony/MmsMessagePreferenceControllerTest.java

@@ -115,9 +115,11 @@ public class MmsMessagePreferenceControllerTest {
     @Test
     public void setChecked_setDataIntoSubscriptionManager() {
         mController.setChecked(true);
-        verify(mTelephonyManager).setAlwaysAllowMmsData(true);
+        verify(mTelephonyManager).setMobileDataPolicyEnabledStatus(
+                TelephonyManager.MOBILE_DATA_POLICY_MMS_ALWAYS_ALLOWED, true);
 
         mController.setChecked(false);
-        verify(mTelephonyManager).setAlwaysAllowMmsData(false);
+        verify(mTelephonyManager).setMobileDataPolicyEnabledStatus(
+                TelephonyManager.MOBILE_DATA_POLICY_MMS_ALWAYS_ALLOWED, false);
     }
 }