wifi: ath11k: Remove scan_flags union from struct scan_req_params

Now that we do not use scan_flags directly with WMI_SCAN_XXX macros anymore but
only the bitfield scan_f_xxx, lets remove the scan_flags & the underlying union.

This will prevent further problems as some entries in the scan_f_xxx bitfield
don't match their corresponding WMI_SCAN_XXX flags as seen in [1]

[1] https://lore.kernel.org/all/20231127180559.1696041-1-nico.escande@gmail.com/Signed-off-by: Nicolas Escande <nico.escande@gmail.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://msgid.link/20240209113536.266822-3-nico.escande@gmail.com

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

@@ -3394,8 +3394,6 @@ struct scan_req_params {
 	u32 idle_time;
 	u32 max_scan_time;
 	u32 probe_delay;
-	union {
-		struct {
 	u32 scan_f_passive:1,
 	    scan_f_bcast_probe:1,
 	    scan_f_cck_rates:1,
@@ -3421,9 +3419,6 @@ struct scan_req_params {
 	    scan_f_2ghz:1,
 	    scan_f_5ghz:1,
 	    scan_f_80mhz:1;
-		};
-		u32 scan_flags;
-	};
 	enum scan_dwelltime_adaptive_mode adaptive_dwell_time_mode;
 	u32 burst_duration;
 	u32 num_chan;