remoteproc: qcom_wcnss_iris: Add missing put_device() on error in probe

The device_del() call matches with the device_add() but we also need
to call put_device() to trigger the qcom_iris_release().

Fixes: 1fcef985 ("remoteproc: qcom: wcnss: Fix race with iris probe")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/4604f7e0-3217-4095-b28a-3ff8b5afad3a@stanley.mountain


Signed-off-by: Bjorn Andersson <andersson@kernel.org>