This had been set in r44508 as a workaround for switch problems.

Now that the switch driver can handle two devices with
the same MAC address in separate VLANs we can go back
to using the same address on both interfaces.

This is the Linksys firmware's default behavior.

Signed-off-by: Claudio Leite <leitec@staticky.com>
Signed-off-by: Imre Kaloz <kaloz@openwrt.org>

SVN-Revision: 46700