Extend the SCP binding to describe the MT8195 dual-core SCP.
Under different applications, the MT8195 SCP can be used as single-core
or dual-core. This change keeps the single-core definition and
adds new definitions for dual-core use case.
Signed-off-by: Tinghan Shen <tinghan.shen@xxxxxxxxxxxx>
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>