This commit fixes following script error in syslog:
cat: can't open '/sys/devices/platform/ehci-platform/usb1/1-1/1-1.2/1-1.2:1.4/ieee80211/phy*/name': No such file or directory
sh: add: unknown operand
sh: add: unknown operand
Signed-off-by: Rosy Song <rosysong@rosinson.com>
Signed-off-by: Petr Štetiar <ynezz@true.cz>
[commit subject and message tweaks]