qcacld-3.0: Eliminate trivial warn-level print

Eliminate unnecessary warn-level print in
sch_set_fixed_beacon_fields().

Change-Id: I9ccaa077ee522665df4554f1a2c6be636d69804a
CRs-Fixed: 2574158

core/mac/src/pe/sch/sch_beacon_gen.c

@@ -466,7 +466,7 @@ sch_set_fixed_beacon_fields(struct mac_context *mac_ctx, struct pe_session *sess
 	}
 
 	if (lim_is_session_he_capable(session)) {
-		pe_warn("Populate HE IEs");
+		pe_debug("Populate HE IEs");
 		populate_dot11f_he_caps(mac_ctx, session,
 					&bcn_2->he_cap);
 		populate_dot11f_he_operation(mac_ctx, session,