Add checks on multisim capabilities.

Rename method isMultisimCarrierRestricted to isMultisimSupported to
indicate extended scope that includes checks on the capabilities of the
hardware to support multi-SIM configuration.

Bug: 123537730
Test: Compilation, test application
Change-Id: I39954476a9a8fad791892a65d2c47aa23be75053

src/com/android/settings/RadioInfo.java

@@ -1559,9 +1559,7 @@ public class RadioInfo extends Activity {
     }
 
     private static boolean isDsdsSupported() {
-        return PhoneConfigurationManager.getInstance().getStaticPhoneCapability()
-                .logicalModemList.size() >= 2
-                && !TelephonyManager.getDefault().isMultisimCarrierRestricted();
+        return TelephonyManager.getDefault().isMultisimSupported();
     }
 
     private static boolean isDsdsEnabled() {