remoteproc: qcom_wcnss: Use devm_qcom_smem_state_get()

Use the new managed devm_qcom_smem_state_get() variant instead of
calling qcom_smem_state_put() explicitly in remove() to simplify the
code a bit.

Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20210618111556.53416-3-stephan@gerhold.net


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