9p: Add rest of 9p files to MAINTAINERS entry
9p: Add rest of 9p files to MAINTAINERS entry

It was missing net and include directories.

Signed-off-by: Eric Van Hensbergen <f6aaec02cb2023b586fda1596c965a5752b892b4@gmail.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs