usb: dwc3: Fix error return code in dwc3_qcom_probe()

Fix to return error code -ENODEV from the get device failed error
handling case instead of 0, as done elsewhere in this function.

Fixes: a4333c3a ("usb: dwc3: Add Qualcomm DWC3 glue driver")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>