usb: typec: fix pm usage counter imbalance in ucsi_ccg_sync_control()

usb: typec: fix pm usage counter imbalance in ucsi_ccg_sync_control()

The error handling for the case `con_index == 0` should involve dropping
the pm usage counter, as ucsi_ccg_sync_control() gets it at the
beginning. Fix it.

Cc: stable <stable@kernel.org>
Fixes: e56aac6e5a25 ("usb: typec: fix potential array underflow in ucsi_ccg_sync_control()")
Signed-off-by: GONG Ruiqi <gongruiqi1@huawei.com>
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20250107015750.2778646-1-gongruiqi1@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>