This patch adds support for the Bitmain Antminer S1 Cryptocurrency Miner

http://wiki.openwrt.org/toh/bitmain/s1Signed-off-by: L. D. Pinney <ldpinney@gmail.com>
Acked-by: James Hilliard <james.hilliard1@gmail.com>

Backport of r46044

git-svn-id: svn://svn.openwrt.org/openwrt/branches/chaos_calmer@46054 3c298f89-4303-0410-b956-a3cf2f4a3e73