Fix an out of bound in psd file
Origin: upstream,
https://github.com/ImageMagick/ImageMagick/commit/533ea3b9047c67f9af49703de672f6c2e443f747
bug: https://github.com/ImageMagick/ImageMagick/issues/128
bug-ubuntu:
https://bugs.launchpad.net/ubuntu/+source/imagemagick/+bug/1545180
bug-debian: https://bugs.debian.org/823750
