qcacmn: Monitor Status ring memory optimization

Memory optimization of monitor status ring by allocating buffers during
replenish using alloc_skb (linux API).
It creates buffer of required size rather than 4k size(dev_alloc_skb)

Change-Id: I3ae5e403de28c4570f8ac3b50d3ca878a9e4b2f9
CRs-Fixed: 2733931

hal/wifi3.0/hal_rx.h

@@ -40,6 +40,14 @@
 #define RX_MONITOR_BUFFER_SIZE  2048
 #endif
 
+/* MONITOR STATUS BUFFER SIZE = 1536 data bytes, buffer allocation of 2k bytes
+ * including skb shared info and buffer alignment.
+ */
+#define RX_MON_STATUS_BASE_BUF_SIZE    2048
+#define RX_MON_STATUS_BUF_ALIGN  128
+#define RX_MON_STATUS_BUF_SIZE  (RX_MON_STATUS_BASE_BUF_SIZE - \
+				 RX_MON_STATUS_BUF_ALIGN - QDF_SHINFO_SIZE)
+
 /* HAL_RX_NON_QOS_TID = NON_QOS_TID which is 16 */
 #define HAL_RX_NON_QOS_TID 16