mpc83xx: mpc8349itx - accommodate larger kernel sizes & unzero the bootdelay

apparently the ITX was missed last round.

Also make bootdelay consistent with other boards, so as to give on the
opportunity to fix mistakenly set bootcmd without having checked for an
bootdelay zero setting first.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
1 file changed