qcacmn: Place pktlog specific code under BE_PKTLOG_SUPPORT

Introduce a new flag "BE_PKTLOG_SUPPORT" for beryllium specific
pktlog support.

Change-Id: If91156541b322905ad5d97cf2d9d7ae687290ecb
CRs-Fixed: 3115832

dp/wifi3.0/dp_rx.h

@@ -45,7 +45,7 @@
 #endif
 
 #define RX_BUFFER_RESERVATION   0
-#ifdef QCA_WIFI_QCN9224
+#ifdef BE_PKTLOG_SUPPORT
 #define RX_MON_MIN_HEAD_ROOM   64
 #endif