west.yml: update Zephyr to 9d8059b6e5541

Fast-forward Zephyr by 700+ commits including following patches
affecting SOF build targets:

ae082064ffa5 drivers: dai: sai: write some data into TX FIFO before start
0ca7ef78bc50 soc: intel_adsp: tools: merge cavstool.py and acetool.py code

Signed-off-by: Kai Vehmanen <[email protected]>

Author: kv2019i

west.yml

@@ -43,7 +43,7 @@ manifest:
 
     - name: zephyr
       repo-path: zephyr
-      revision: e97d33d0c896767a676b20e9bdc928ff46f25905
+      revision: 9d8059b6e5541f7f6b4eb1697dccd475f2c1b39b
       remote: zephyrproject
 
       # Import some projects listed in zephyr/west.yml@revision