Convert band configuration when passing to and from HAL.

Test: instrumentation, manual (KitchenSink)
Bug: b/36863239
Change-Id: Ibd1fd9d9ed0445105a401c5a242f3a9019558170
diff --git a/services/core/java/com/android/server/radio/Tuner.java b/services/core/java/com/android/server/radio/Tuner.java
index 5318861..248a139 100644
--- a/services/core/java/com/android/server/radio/Tuner.java
+++ b/services/core/java/com/android/server/radio/Tuner.java
@@ -31,7 +31,10 @@
      */
     private final long mNativeContext;
 
-    Tuner(@NonNull ITunerCallback clientCallback) {
+    private int mRegion;
+
+    Tuner(@NonNull ITunerCallback clientCallback, int region) {
+        mRegion = region;
         mNativeContext = nativeInit(clientCallback);
     }