ath11k: add separate APIs for monitor mode

Add separate APIs for monitor_vdev_create/monitor_vdev_delete
and monitor_vdev_start/monitor_vdev_stop.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01725-QCAHKSWPL_SILICONZ-1
Co-developed-by: Miles Hu <milehu@codeaurora.org>
Signed-off-by: Miles Hu <milehu@codeaurora.org>
Co-developed-by: Vasanthakumar Thiagarajan <vthiagar@codeaurora.org>
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@codeaurora.org>
Signed-off-by: Seevalamuthu Mariappan <seevalam@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210721162053.46290-3-jouni@codeaurora.org

drivers/net/wireless/ath/ath11k/core.h

@@ -194,6 +194,9 @@ enum ath11k_dev_flags {
 
 enum ath11k_monitor_flags {
 	ATH11K_FLAG_MONITOR_ENABLED,
+	ATH11K_FLAG_MONITOR_CONF_ENABLED,
+	ATH11K_FLAG_MONITOR_STARTED,
+	ATH11K_FLAG_MONITOR_VDEV_CREATED,
 };
 
 struct ath11k_vif {
@@ -488,7 +491,6 @@ struct ath11k {
 	u32 chan_tx_pwr;
 	u32 num_stations;
 	u32 max_num_stations;
-	bool monitor_present;
 	/* To synchronize concurrent synchronous mac80211 callback operations,
 	 * concurrent debugfs configuration and concurrent FW statistics events.
 	 */
@@ -563,6 +565,7 @@ struct ath11k {
 	struct ath11k_per_peer_tx_stats cached_stats;
 	u32 last_ppdu_id;
 	u32 cached_ppdu_id;
+	int monitor_vdev_id;
 #ifdef CONFIG_ATH11K_DEBUGFS
 	struct ath11k_debug debug;
 #endif