wl18xx: use module_platform_driver

the driver's init and exit routines can be implemented with the
module_platform_driver, as the init and exit code is same as
that of the module_platform_driver

Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
1 file changed