soc: qcom: pdr: Fix error return code in pdr_register_listener

Fix to return the error code -EREMOTEIO from pdr_register_listener
rather than 0.

Fixes: fbe639b4 ("soc: qcom: Introduce Protection Domain Restart helpers")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Link: https://lore.kernel.org/r/20201125065034.154217-1-miaoqinglang@huawei.com


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