misc: microchip: pci1xxxx: fix error handling in gp_aux_bus_probe()

In some error handling path, resoures alloced may not released.
This patch fix them.

Fixes: 393fc2f5 ("misc: microchip: pci1xxxx: load auxiliary bus driver for the PIO function in the multi-function endpoint of pci1xxxx device.")
Reviewed-by: Kumaravel Thiagarajan <kumaravel.thiagarajan@microchip.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20220907145808.1789249-1-weiyongjun@huaweicloud.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>