hostapd: start hostapd/wpa_supplicant for all wiphy devices

hostapd: start hostapd/wpa_supplicant for all wiphy devices

c888e17e06 ("hostapd: manage instances via procd instead of pidfile")
added procd support for managing hostapd and wpa_supplicant daemons
but at the same time limited wiphy names to 'phy*'.

This brings back initial behaviour (introduced in 60fb4c92b6 ("hostapd:
add ubus reload") and makes procd manage daemons for any wiphy device
found in '/sys/class/ieee80211'.

CC: Felix Fietkau <[email protected]>
CC: Daniel Golle <[email protected]>
Signed-off-by: Piotr Dymacz <[email protected]>