Documentation: update kernel enforcement support list

Adding myself to the list as I missed the window to be in the original patch.

Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Olof Johansson <olof@lixom.net>
Cc: Juergen Gross <jgross@suse.com>
Cc: Javier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: Eduardo Valentin <eduval@amazon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>