i2c: pxa-pci: fix missing pci_disable_device() on error in ce4100_i2c_probe

Using pcim_enable_device() to avoid missing pci_disable_device().

Fixes: 7e94dd15

 ("i2c-pxa2xx: Add PCI support for PXA I2C controller")
Signed-off-by: Hui Tang <tanghui20@huawei.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>