intel_adsp: Use gpdma for cAVS

Previous Kconfig designated designware dma but did not define
the ip block in device tree. This caused warning when building tests.
The warnings caused CI to fail.

Really though the devices do all depend on the gpdma derivative and not
the generic DesignWare driver.

Signed-off-by: Tom Burdick <thomas.burdick@intel.com>