[DNM] testing hpsram power down code

Using zephyrproject-rtos/zephyr#80333
to test HPSRAM powering down code.

Signed-off-by: Daniel Leung <daniel.leung@intel.com>

west.yml

@@ -43,7 +43,7 @@ manifest:
 
     - name: zephyr
       repo-path: zephyr
-      revision: 155f3f3ba688dac3e1113ada3f9cfa894612f951
+      revision: pull/80333/head
       remote: zephyrproject
 
       # Import some projects listed in zephyr/west.yml@revision