Properly recognize repeating wakeup alarms

cherry-pick from lmp-mr1-dev

The code in place was inappropriately treating all recurring alarms
as non-wakeup for purposes of deferral.  Worse, it was overriding the
"this deliverable batch of alarms includes a wakeup alarm" bookkeeping,
so could potentially cause inappropriate deferral of even standalone
wakeup alarms.

Bug 18591317

Change-Id: I2a62ed4badcaeb549c1ac4f086014aa829e45427
(cherry picked from commit 864d42eb96)

services/core/java/com/android/server/AlarmManagerService.java

@@ -1425,12 +1425,9 @@ class AlarmManagerService extends SystemService {
                             maxTriggerTime(nowELAPSED, nextElapsed, alarm.repeatInterval),
                             alarm.repeatInterval, alarm.operation, batch.standalone, true,
                             alarm.workSource, alarm.alarmClock, alarm.userId);
+                }
 
-                    // For now we count this as a wakeup alarm, meaning it needs to be
-                    // delivered immediately.  In the future we should change this, but
-                    // that required delaying when we reschedule the repeat...!
-                    hasWakeup = false;
-                } else if (alarm.wakeup) {
+                if (alarm.wakeup) {
                     hasWakeup = true;
                 }