Add Support for getRadioHalVersion()

Add support to retrieve the Radio HAL Version for
test purposes.

Bug: 122834594
Test: compilation
Change-Id: If91ec9d1631a2c6fb90f257f44a458fd2e9bf8d4
diff --git a/src/com/android/phone/PhoneInterfaceManager.java b/src/com/android/phone/PhoneInterfaceManager.java
index 13accc9..a506bf0 100755
--- a/src/com/android/phone/PhoneInterfaceManager.java
+++ b/src/com/android/phone/PhoneInterfaceManager.java
@@ -114,6 +114,7 @@
 import com.android.internal.telephony.CellNetworkScanResult;
 import com.android.internal.telephony.CommandException;
 import com.android.internal.telephony.DefaultPhoneNotifier;
+import com.android.internal.telephony.HalVersion;
 import com.android.internal.telephony.INumberVerificationCallback;
 import com.android.internal.telephony.ITelephony;
 import com.android.internal.telephony.IccCard;
@@ -158,7 +159,6 @@
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collection;
-import java.util.Collections;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
@@ -6664,4 +6664,16 @@
             Binder.restoreCallingIdentity(identity);
         }
     }
+
+    /**
+     * Get the IRadio HAL Version
+     */
+    @Override
+    public int getRadioHalVersion() {
+        Phone phone = getDefaultPhone();
+        if (phone == null) return -1;
+        HalVersion hv = phone.getHalVersion();
+        if (hv.equals(HalVersion.UNKNOWN)) return -1;
+        return hv.major * 100 + hv.minor;
+    }
 }