usb: typec: ucsi: huawei_gaokun: add error checking

usb: typec: ucsi: huawei_gaokun: add error checking

'cci' may be uninitialized, adding error checking to fix it.

Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/all/Z_44zoTyLLdXNkKT@stanley.mountain
Fixes: 00327d7f2c8c ("usb: typec: ucsi: add Huawei Matebook E Go ucsi driver")
Signed-off-by: Pengyu Luo <mitltlatltl@gmail.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20250415172006.126740-1-mitltlatltl@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>