Add a new overlay to enable logging via winstream backend. This is
alternative memory window based logging backend that typically
uses memory window 3 as transport. The backend is directly
using Zephyr winstream protocol, and has no dependency to SOF
IPC definitions.
One client is available in Zephyr upstream at:
zephyr/soc/intel/intel_adsp/tools/cavstool.py
Note: winstream backend is not supported by Linux SOF driver.
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Kai Vehmanen