Add James Simmons as another Lustre maintainer

James Simmons is also spendign a lot of efforts on
cleaning up staging tree Lustre code and also
helps to sync up all the missing changes from the other tree.

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>