qcacmn: Skip chan list update during SSR

The Firmware will switch to default US regdomain
after SSR.

After SSR we need to keep the old country code,
so skip the chan list update firmware event duing SSR.

Change-Id: I8735abef67e072f60961aab655a016348dc9d4a0
CRs-Fixed: 2304303

target_if/regulatory/src/target_if_reg.c

@@ -30,6 +30,7 @@
 #include <target_if_reg.h>
 #include <wmi_unified_reg_api.h>
 #include <wlan_reg_ucfg_api.h>
+#include <qdf_platform.h>
 
 static inline uint32_t get_chan_list_cc_event_id(void)
 {
@@ -101,6 +102,11 @@ static int tgt_reg_chan_list_update_handler(ol_scn_t handle,
 
 	TARGET_IF_ENTER();
 
+	if (qdf_is_fw_down()) {
+		target_if_debug("ignore chan list update evt in ssr");
+		return 0;
+	}
+
 	psoc = target_if_get_psoc_from_scn_hdl(handle);
 	if (!psoc) {
 		target_if_err("psoc ptr is NULL");