ACPI DMA provides managed function to register the slave DMA controller in the
internal container. This patch anounces that function in the corresponding
documentation file.
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Rob Landley <rob@landley.net>
Signed-off-by: NVinod Koul <vinod.koul@intel.com>