dt-bindings: serial: imx: Switch to my personal address

My nxp account will expire soon, so switch to my personal e-mail
address.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20210130144751.133641-1-festevam@gmail.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>