Log desktop mode changes to system event log.

This will show desktop windowing task changes in bugreports to enable
easier debugging and integration with features like battery historian.

Bug: 370682195
Flag: EXEMPT log only update
Test: adb logcat -b events

Change-Id: I62f40c2c4e99dc373436ece5bb30a7dd1f2c3fab
diff --git a/libs/WindowManager/Shell/Android.bp b/libs/WindowManager/Shell/Android.bp
index f857429..0d30dab 100644
--- a/libs/WindowManager/Shell/Android.bp
+++ b/libs/WindowManager/Shell/Android.bp
@@ -197,6 +197,7 @@
 android_library {
     name: "WindowManager-Shell",
     srcs: [
+        "src/com/android/wm/shell/EventLogTags.logtags",
         ":wm_shell_protolog_src",
         // TODO(b/168581922) protologtool do not support kotlin(*.kt)
         ":wm_shell-sources-kt",