Update base class & rebuild workloads

wlauto/external/uiauto/src/com/arm/wlauto/uiauto/UxPerfUiAutomation.java

@@ -51,7 +51,7 @@ public class UxPerfUiAutomation extends BaseUiAutomation {
     public enum GestureType { UIDEVICE_SWIPE, UIOBJECT_SWIPE, PINCH };
     public enum PinchType { IN, OUT, NULL };
 
-    public class Timer {
+    public static class Timer {
         private long startTime = 0;
         private long endTime = 0;
         private long duration = 0;
@@ -301,7 +301,7 @@ public class UxPerfUiAutomation extends BaseUiAutomation {
         return results;
     }
 
-    public class GestureTestParams {
+    public static class GestureTestParams {
         public GestureType gestureType;
         public Direction gestureDirection;
         public PinchType pinchType;