MAINTAINERS: Remove self from Cirrus Codec drivers

I'm leaving Cirrus Logic, and will no longer have access to
hardware and documentation necessary to be effective in a
maintainership role.

Signed-off-by: Lucas Tanure <tanureal@opensource.cirrus.com>
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20230512154503.741718-1-rf@opensource.cirrus.com


Signed-off-by: Mark Brown <broonie@kernel.org>