overlay: Add pipe life-cycle logging

Add pipe life-cycle logging including set, unset, commit.
Remove the older unused logging mechanism.
This is enabled via binder as:
$adb shell service call display.qservice 15 i32 4 i32 1
where 15 is DYNAMIC_DEBUG, 4 is for pipe lifecycle debugging and
1 is to enable

Change-Id: I6c02e24aa91135d4a6c67870b4c103546947da48
diff --git a/libqservice/IQService.h b/libqservice/IQService.h
index 9be04b2..30c064e 100644
--- a/libqservice/IQService.h
+++ b/libqservice/IQService.h
@@ -65,7 +65,8 @@
         DEBUG_ALL,
         DEBUG_MDPCOMP,
         DEBUG_VSYNC,
-        DEBUG_VD
+        DEBUG_VD,
+        DEBUG_PIPE_LIFECYCLE,
     };
 
     // Register a client that can be notified