nfc: mrvl: simplify with module_driver

Remove standard module init/exit boilerplate with module_driver() which
also annotates the functions with __init.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20210531073902.7111-1-krzysztof.kozlowski@canonical.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>