wlan : Deprecate PAL memory APIs

Disable PAL memory APIs by enabling FEATURE_WLAN_PAL_MEM_DISABLE
in Kbuild

Change-Id: I63caeeab4710b5b9e3a676cac2b464a271e7f8ce
CRs-Fixed: 583364
diff --git a/Kbuild b/Kbuild
index 1913125..2f4e941 100644
--- a/Kbuild
+++ b/Kbuild
@@ -540,7 +540,8 @@
 		-DWLAN_NL80211_TESTMODE \
 		-DFEATURE_WLAN_BATCH_SCAN \
 		-DFEATURE_WLAN_LPHB \
-                -DFEATURE_WLAN_PAL_TIMER_DISABLE
+                -DFEATURE_WLAN_PAL_TIMER_DISABLE \
+                -DFEATURE_WLAN_PAL_MEM_DISABLE
 
 ifneq ($(CONFIG_PRONTO_WLAN),)
 CDEFINES += -DWCN_PRONTO