Change date on CustomCalendar

The date of the calendar is set by converting the epoch time based on
the local time zone. We choose at date at 12:00 GMT so that it will
be on the same day no matter which time zone is considered.

Test: part of testActivity
Change-Id: Ib36a5b45f69323265dd5ceaa17eeac553fc2d071
(cherry picked from commit 896cc3a794bb6e173c1e53e97f70007c3e24de38)

tools/layoutlib/bridge/tests/res/testApp/MyApplication/src/main/java/com/android/layoutlib/test/myapplication/CustomCalendar.java

@@ -26,6 +26,6 @@ public class CustomCalendar extends CalendarView {
     }
 
     private void init() {
-        setDate(871703200000L, false, true);
+        setDate(871732800000L, false, true);
     }
 }