MAINTAINERS: Theodore Ts'o is taking over the random driver

commit 330e0a01d54c2b8606c56816f99af6ebc58ec92c upstream.

Matt Mackall stepped down as the /dev/random driver maintainer last
year, so Theodore Ts'o is taking back the /dev/random driver.

Cc: Matt Mackall <mpm@selenic.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>