qcacmn: Monitor vdev and peer attach/detach

PATCH[5/7]:
This patch consists following changes:
 -Monitor vdev context allocation while vdev attach and free
  while vdev delete
 -Monitor peer context allocation while peer create and free while
  peer delete
 -Move monitor vdev timer function to monitor file
 -Move monitor reap timer handler function to monitor file
 -Move monitor timer related variables to monitor file
 -Add timer init/deinit and start/stop in monitor file.

Change-Id: I9c7910671d3678c53ca9ec44a57bc10e892008d9
CRs-Fixed: 2983994

dp/wifi3.0/dp_htt.h

@@ -454,20 +454,6 @@ struct htt_stats_context {
 	uint32_t msg_len;
 };
 
-int
-dp_htt_get_ppdu_sniffer_ampdu_tlv_bitmap(uint32_t bitmap);
-
-/**
- * dp_ppdu_desc_user_stats_update(): Function to update TX user stats
- * @pdev: DP pdev handle
- * @ppdu_info: per PPDU TLV descriptor
- *
- * return: void
- */
-void
-dp_ppdu_desc_user_stats_update(struct dp_pdev *pdev,
-			       struct ppdu_info *ppdu_info);
-
 /**
  * dp_htt_rx_flow_fst_setup(): Send HTT Rx FST setup message to FW
  * @pdev: DP pdev handle