Cezary Jackiewicz 71e0ef3978 ar71xx: add GPIO pin for usb power switch for RouterBOARD 912
RB912 has one usb shared between external USB and miniPCIe slot. GPIO52 can
reroute power to external USB (=1) or internal miniPCIe slot (=0)

Signed-off-by: Cezary Jackiewicz <cezary@eko.one.pl>
2016-05-27 10:27:44 +02:00
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