remoteproc: qcom: pas: Add MSM8998 ADSP and SLPI support

Add support for booting the Audio and Sensor DSPs found in
Qualcomm's MSM8998 SoCs.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Link: https://lore.kernel.org/r/20191218132217.28141-4-sibis@codeaurora.org


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