qcacld-3.0: Enable delayed work tracking

Enable delayed work tracking, recently added in
Ie02c3577acd443e3f252b9b3a47207e5e2d5fe81.

Change-Id: I6bf718e3c7d9aa72681d0a0ffbabcb304968e229
CRs-Fixed: 2425533
diff --git a/Kbuild b/Kbuild
index d46cdc0..0031027 100644
--- a/Kbuild
+++ b/Kbuild
@@ -2054,7 +2054,8 @@
 	-DMEMORY_DEBUG \
 	-DNBUF_MEMORY_DEBUG \
 	-DNBUF_MAP_UNMAP_DEBUG \
-	-DTIMER_MANAGER
+	-DTIMER_MANAGER \
+	-DWLAN_DELAYED_WORK_DEBUG
 endif
 
 cppflags-y += -DWLAN_FEATURE_P2P