PCMark: Fixing click co-ordinates

The workload is clicking the run button in the centre
of the element but this is no longer starting the
run operation.

Refactoring the code to click in the topleft of the
object seems to rectify the issue.

wa/workloads/pcmark/uiauto/app/src/main/java/com/arm/wa/uiauto/pcmark/UiAutomation.java

@@ -123,7 +123,7 @@ public class UiAutomation extends BaseUiAutomation {
                                                .childSelector(new UiSelector().text("RUN")
                                                .className("android.view.View")));
         if (run.exists()) {
-            run.click();
+            run.clickTopLeft();
         } else {
             UiObject runtext =
                 mDevice.findObject(new UiSelector().text("RUN"));