arm64: dts: qcom: db410c: Update firmware-name for wcnss and mpss

Enable the mpss remoteproc node and specify the firmware-name for this
and the wcnss remoteproc on the Dragonboard 410c.

Link: https://lore.kernel.org/r/20200108055735.660475-1-bjorn.andersson@linaro.org


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