qcacmn: Add radio level parameter OL_ATH_EXT_ACS_REQUEST_IN_PROGRESS

A radio level parameter for configuring if external channel selection on
the radio is in progress is required to reduce the number of external
channel selection requests by the radio.
Add the parameter OL_ATH_EXT_ACS_REQUEST_IN_PROGRESS for this purpose.

Change-Id: I30ce066e840b11fe23158b896977fbf3924dbbf3
CRs-Fixed: 2483737

dp/inc/cdp_txrx_stats_struct.h

@@ -1618,6 +1618,8 @@ enum _ol_ath_param_t {
 	OL_ATH_PARAM_SET_CMD_OBSS_PD_THRESHOLD_ENABLE = 421,
 	/* Get baseline radio level channel width */
 	OL_ATH_PARAM_RCHWIDTH = 422,
+	/* Whether external ACS request is in progress */
+	OL_ATH_EXT_ACS_REQUEST_IN_PROGRESS = 423,
 };
 #endif
 /* Bitmasks for stats that can block */