Fix blank clock (issue 7344512)

Change-Id: Iad23f049fcc31ad8f08c99e7c3088e1523de1d45

Author: Adam Cohen

policy/src/com/android/internal/policy/impl/keyguard/PagedView.java

@@ -317,6 +317,7 @@ void setCurrentPage(int currentPage) {
             return;
         }
 
+        mForceScreenScrolled = true;
         mCurrentPage = Math.max(0, Math.min(currentPage, getPageCount() - 1));
         updateCurrentPageScroll();
         updateScrollingIndicator();