manifest: Update sdk-zephyr revision (auto-manifest PR)

Automatically created by action-manifest-pr GH action from PR:
nrfconnect/sdk-zephyr#3520

Signed-off-by: Nordic Builder <[email protected]>

Author: NordicBuilder

west.yml

@@ -64,7 +64,7 @@ manifest:
     # https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/guides/modules.html
     - name: zephyr
       repo-path: sdk-zephyr
-      revision: df20fa560587656afee0216143a03696fce67f7c
+      revision: pull/3520/head
       import:
         # In addition to the zephyr repository itself, NCS also
         # imports the contents of zephyr/west.yml at the above