MAINTAINERS: Update max30208 maintainership

MAINTAINERS: Update max30208 maintainership

Update MAX30208 temperature sensor driver maintainer.
The previous maintainer's email bounces and no longer works.
Also mark the driver as supported.

Reported-by: Dave Hansen <dave.hansen@linux.intel.com>
Closes: https://lore.kernel.org/linux-iio/20250808174901.4556B33A@davehans-spike.ostc.intel.com/
Signed-off-by: Marcelo Schmitt <marcelo.schmitt@analog.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Link: https://patch.msgid.link/20250808190203.7493-1-marcelo.schmitt@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>