Add a config for the MPSS present on SM6375.
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230725-topic-6375_rproc-v5-3-a8e9cde56a20@linaro.orgSigned-off-by: Bjorn Andersson <andersson@kernel.org>