arm64: dts: qcom: db845c: Move remoteproc firmware to sdm845

The redistributable firmware should work on any engineering device, so
lets push this to qcom/sdm845, rather than qcom/db845c. Also specify the
path for the modem firmware.

Reviewed-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20191113203951.3704428-1-bjorn.andersson@linaro.org


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