Add fastrpc device node for adsp with one compute bank.
Tested-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20200310175452.7503-1-srinivas.kandagatla@linaro.orgSigned-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>