remoteproc: qcom_q6v5_mss: fix a bug in q6v5_probe()

If looking up the DT "firmware-name" property fails in q6v6_probe(),
the function returns without freeing the remoteproc structure
that has been allocated.  Fix this by jumping to the free_rproc
label, which takes care of this.

Signed-off-by: Alex Elder <elder@linaro.org>
Link: https://lore.kernel.org/r/20200403175005.17130-3-elder@linaro.org


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