[MIPS] Fix size of zones_size and zholes_size array

Commit f06a96844a577c43249fce25809a4fae07407f46 broke MIPS.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
1 file changed