cmsdk: Fix crash when getting LiveDisplay config

* If capabilities is empty, BitSet.toLongArray returns an empty array.

Change-Id: I17476438995b581050feda346d0348228519ff44

sdk/src/java/cyanogenmod/hardware/LiveDisplayConfig.java

@@ -132,7 +132,8 @@ public class LiveDisplayConfig implements Parcelable {
         ParcelInfo parcelInfo = Concierge.prepareParcel(out);
 
         // ==== FIG =====
-        out.writeLong(mCapabilities.toLongArray()[0]);
+        long[] caps = mCapabilities.toLongArray();
+        out.writeLong(caps != null && caps.length > 0 ? caps[0] : 0L);
         out.writeInt(mDefaultMode);
         out.writeInt(mDefaultDayTemperature);
         out.writeInt(mDefaultNightTemperature);