net: phy: mv88E61xx: fix ENERGY_DET init for mv88E6071

net: phy: mv88E61xx: fix ENERGY_DET init for mv88E6071

On mv88E6071 the 'EDet' field offset, width and sense control
bits are different, adjust the driver to init the PHY control
register as needed. This fixes not working link detection and
tftp transfers.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Reviewed-by: Chris Packham <judge.packham@gmail.com>
Tested-by: Chris Packham <judge.packham@gmail.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>