qcacmn: Delay monitor buffers replenish to monitor VAP create

Monitor buffer are required only when monitor VAP is created. Allocate
these buffers only when montior VAP is created. This provides memory
savings when no monitor VAP is created/required.

Change-Id: I3ddaef00615f00fd13adb2789469a62f1a0af165
CRs-Fixed: 2491873

dp/wifi3.0/dp_rx.h

@@ -1103,6 +1103,24 @@ QDF_STATUS dp_rx_buffers_replenish(struct dp_soc *dp_soc, uint32_t mac_id,
 				 union dp_rx_desc_list_elem_t **desc_list,
 				 union dp_rx_desc_list_elem_t **tail);
 
+/*
+ * dp_pdev_rx_buffers_attach() - replenish rxdma ring with rx nbufs
+ *                               called during dp rx initialization
+ *
+ * @soc: core txrx main context
+ * @mac_id: mac_id which is one of 3 mac_ids
+ * @dp_rxdma_srng: dp rxdma circular ring
+ * @rx_desc_pool: Pointer to free Rx descriptor pool
+ * @num_req_buffers: number of buffer to be replenished
+ *
+ * Return: return success or failure
+ */
+QDF_STATUS
+dp_pdev_rx_buffers_attach(struct dp_soc *dp_soc, uint32_t mac_id,
+			  struct dp_srng *dp_rxdma_srng,
+			  struct rx_desc_pool *rx_desc_pool,
+			  uint32_t num_req_buffers);
+
 /**
  * dp_rx_link_desc_return() - Return a MPDU link descriptor to HW
  *			      (WBM), following error handling