Make sure to use exact alarms for Calendar events

Change-Id: Idfe11d65c81999b76cbbe2611bb77816f0c8875a
diff --git a/src/com/android/providers/calendar/CalendarAlarmManager.java b/src/com/android/providers/calendar/CalendarAlarmManager.java
index 5f8c00c..dd4ffb8 100644
--- a/src/com/android/providers/calendar/CalendarAlarmManager.java
+++ b/src/com/android/providers/calendar/CalendarAlarmManager.java
@@ -495,7 +495,7 @@
     }
 
     public void set(int type, long triggerAtTime, PendingIntent operation) {
-        mAlarmManager.set(type, triggerAtTime, operation);
+        mAlarmManager.setExact(type, triggerAtTime, operation);
     }
 
     public void cancel(PendingIntent operation) {