Fix for fd0 and sr0 in /proc/partitions

["David F." <df7729@xxxxxxxxx>]

Hi,

So /proc/partitions can have floppy and optical drives on it.  For now
in config.c, load_partitions() function I added this after the major
number is obtained (just before minor strtoul() is performed):

        // ignore floppy and cdrom devices
        if (major==2 || major==11)
            continue;

Should probably be in the main line and back ported to some prior
versions.  I've gone with 4.1