get_drv_data(..., &data->type) overwrites memory beyond data->type member due
to mismatch of sizeof(enum pca_type) and sizeof(void *) on 64 bit systems.

Signed-off-by: Peter Mamonov <pmamonov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>