EGL: Expose latch, last composite, and dequeue ready.

Also fix discontinuous reserved token values.

Test: adb shell /data/nativetest/libgui_test/libgui_test
--gtest_filter=*GetFrameTimestamps*

Change-Id: I9d513b8784a7205dfe534c1c74b56c18cd49e74a
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 23c4b30..ff8db16 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -575,10 +575,13 @@
     *outSupported = {
         FrameEvent::REQUESTED_PRESENT,
         FrameEvent::ACQUIRE,
+        FrameEvent::LATCH,
         FrameEvent::FIRST_REFRESH_START,
+        FrameEvent::LAST_REFRESH_START,
         FrameEvent::GL_COMPOSITION_DONE,
         getHwComposer().presentFenceRepresentsStartOfScanout() ?
                 FrameEvent::DISPLAY_PRESENT : FrameEvent::DISPLAY_RETIRE,
+        FrameEvent::DEQUEUE_READY,
         FrameEvent::RELEASE,
     };
     return NO_ERROR;