mtd: ixp4xx: add support for static flash partitions

This patch adds support for static flash partitioning from a platform
device. Also, we clean up some weirdness where statements were separated
by commas instead of semicolons. While we are at it, fix some minor bad
white space, too.

Signed-off-by: Richard Cochran <richard.cochran@omicron.at>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>