qcacld-3.0: get tsf from fw

qcacld-2.0 to qcacld-3.0 propagation

Get tsf from fw. Provide ioctl interface cap_tsf/get_tsf.
Driver issue wmi cmd to fw to realize capture/get.
It can be used in station and softap mode. For sta, getting
tsf from connected ap. For softap, it will generate tsf by-
self

Change-Id: I00d30882bce2f49ee3de3fa189e094c04c0d9943
CRs-Fixed: 817527

Kconfig

@@ -107,6 +107,10 @@ config WLAN_FEATURE_RX_WAKELOCK
 	bool "Enable RX wake lock feature"
 	default n
 
+config WLAN_SYNC_TSF
+	bool "Enable QCOM sync multi devices tsf feature"
+	default n
+
 config FEATURE_LFR_SUBNET_DETECTION
 	bool "Enable LFR Subnet Change Detection"
 	default n