Changeset 9387:9d75feaa7b50
---------------------------
dev: Make the ethernet devices use a non-zero clock

This patch changes the NS gige controller to have a non-clock, and
sets the default to 500 MHz. The blocks that could prevoiusly be
by-passed with a zero clock are now always present, and the user is
left with the option of setting a very high clock frequency to achieve
a similar performance.

util/regress all passing (disregarding t1000 and eio)