atm: eni: fix the missed pci_disable_device() for eni_init_one()

[ Upstream commit c2b947879ca320ac5505c6c29a731ff17da5e805 ]

eni_init_one() misses to call pci_disable_device() in an error path.
Jump to err_disable to fix it.

Fixes: ede58ef2 ("atm: remove deprecated use of pci api")
Signed-off-by: Jing Xiangfeng <jingxiangfeng@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>