Home-Box: fix ethernet on HW3 revision 0400

This issue was caused by a wrong comparision of the board revision.

Signed-off-by: Michael Heimpold <michael.heimpold@tqs.de>
Home-Box: add explicite HW3REV0400 support

Signed-off-by: Michael Heimpold <michael.heimpold@tqs.de>
Merge branch 'master' of github.com:iequalize/u-boot

Signed-off-by: Michael Heimpold <michael.heimpold@tqs.de>