m68knommu: improve code formating FEC driver

Indent all the `else' the same way.
Remove some unecesary white space.

Signed-off-by: Philippe De Muyter <phdm@macqel.be>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>