soc: qcom: bam_dmux: Provide DMA APIs with pointer to DMA device

The arm64 implementation of the DMA APIs requires information from a struct
device.  If one is not proveded, the implementation will print a WARN and
return an error.

Create a compatible device struct with the required information and pass it
to the DMA APIs.

Change-Id: I02e73aa85440a0c30f66480634e336a20f706b56
Signed-off-by: Jeffrey Hugo <jhugo@codeaurora.org>