[HWUI] use AChoreographer in place of DisplayEventReceiver.

Bug: 136262896
Test: builds, boots
Test: scroll through settings app
Test: Toggle between 60/90hz and observe systrace
Change-Id: I8eef306a968525c55f3863ae688545faa43b23be
diff --git a/libs/hwui/JankTracker.cpp b/libs/hwui/JankTracker.cpp
index 10e7160..d25fc4b 100644
--- a/libs/hwui/JankTracker.cpp
+++ b/libs/hwui/JankTracker.cpp
@@ -81,7 +81,7 @@
 
 JankTracker::JankTracker(ProfileDataContainer* globalData) {
     mGlobalData = globalData;
-    nsecs_t frameIntervalNanos = static_cast<nsecs_t>(1_s / DeviceInfo::getRefreshRate());
+    nsecs_t frameIntervalNanos = DeviceInfo::getVsyncPeriod();
     nsecs_t sfOffset = DeviceInfo::getCompositorOffset();
     nsecs_t offsetDelta = sfOffset - DeviceInfo::getAppOffset();
     // There are two different offset cases. If the offsetDelta is positive