don't call parallel wifi reload

don't call parallel wifi reload

Before we call first:
 - ubus call uci {'uci', 'commit', 'wireless'}
 - next script wireless_reload

So, first one could call wireless reload in own context
and next we could do the same from agent context (script).
We could hit:
 - start hostapd (wait other BSSes in case of MLO)
 - during startup issue wifi down
This intruduce issues in some cases, so after defaultreset
or SW flash APs were down.

Don't do that and do full controll of wifi reload process, so
we know exactly flow.