MAINTAINERS: add the Infineon PEB2466 codec entry

After contributing the driver, add myself as the maintainer for the
Infineon PEB2466 codec.

Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Link: https://lore.kernel.org/r/20230206144904.91078-4-herve.codina@bootlin.com


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