qcacmn: Fix CE history compilation issue

alloc_mem_ce_debug_history() is currently stubbed out when
HIF_CONFIG_SLUB_DEBUG_ON is defined, leading to silent CE history
collection failure on MCL devices. Fix the #define to include the full
definition of this function when HIF_CONFIG_SLUB_DEBUG_ON is enabled.

Change-Id: I8cd4c81e21a3874d717e361751372912ce38d560
CRs-Fixed: 2299012

hif/src/ce/ce_main.c

@@ -1176,7 +1176,7 @@ void free_mem_ce_debug_hist_data(struct hif_softc *scn, uint32_t ce_id)
  * Note: For MCL, #if defined (HIF_CONFIG_SLUB_DEBUG_ON) needs to be checked
  * for defined here
  */
-#if HIF_CE_DEBUG_DATA_BUF
+#if defined(HIF_CONFIG_SLUB_DEBUG_ON) || HIF_CE_DEBUG_DATA_BUF
 /**
  * alloc_mem_ce_debug_history() - Allocate mem for the CE descriptors storing
  * @scn: hif scn handle