west.yml: Update west to point to the zephyr PR

Just a test

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>

Author: ranj063

west.yml

@@ -43,7 +43,7 @@ manifest:
 
     - name: zephyr
       repo-path: zephyr
-      revision: e48c90700de7b84c038e73d01f4b2640e2fea127
+      revision: pull/90821/head
       remote: zephyrproject
 
       # Import some projects listed in zephyr/west.yml@revision