goldfish: 64-bit audio driver for goldfish platform

Enable the 64-bit goldfish audio driver.
Support 64-bit buffer address and data read/write.

Signed-off-by: Jun Tian <jun.j.tian@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>