
A given AMP configuration for a board may make either one, or neither of, the ethernet ports available to U-Boot. The Icicle's init code will fail if mac1 is not present, so move it to the optional approach taken for mac0. Signed-off-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>