qcacld-3.0: Enable RX_DESC_DEBUG_CHECK debug flag

Enable the flag in kbuild file for SLUB builds.

Change-Id: I4fbf3b775258567d7f9651b52b9f61401fb3a270
CRs-Fixed: 2390775
diff --git a/Kbuild b/Kbuild
index 906c3bf..4d12c29 100644
--- a/Kbuild
+++ b/Kbuild
@@ -2453,7 +2453,7 @@
 cppflags-$(CONFIG_LITHIUM) += -DPEER_PROTECTED_ACCESS
 cppflags-$(CONFIG_LITHIUM) += -DSERIALIZE_QUEUE_SETUP
 cppflags-$(CONFIG_VERBOSE_DEBUG) += -DENABLE_VERBOSE_DEBUG
-
+cppflags-$(CONFIG_RX_DESC_DEBUG_CHECK) += -DRX_DESC_DEBUG_CHECK
 #Enable STATE MACHINE HISTORY
 cppflags-$(CONFIG_SM_ENG_HIST) += -DSM_ENG_HIST_ENABLE
 #Enable VDEV STATE MACHINE