Use the module_pci_driver() macro to make the code simpler
by eliminating module_init and module_exit calls.
Signed-off-by: NWei Yongjun <weiyongjun1@huawei.com>
Acked-by: NJan Glauber <jglauber@cavium.com>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>