Fix VLYNQ device enable for DG834Gv1

Fix VLYNQ device enable for DG834Gv1

This patch allows VLYNQ devices on the DG834Gv1 to be successfully
enabled.

Currently the "__vlynq_enable_device" function attempts to set the VLYNQ
device clock divisor to values from 1 through 8 until a link is
successfully established. On the DG834Gv1 (but not the DG834Gv2),
setting the VLYNQ device clock divisor to 1 (full rate) results in all
further VLYNQ operations failing (including software reset), so the
device is never enabled. This patches changes the function to only
attempt divisors 2 through 8, and hence the device is successfully
enabled.

Signed-off-by: Nick Forbes <nick.forbes@huntsworth.com>
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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@9656 3c298f89-4303-0410-b956-a3cf2f4a3e73