quarantine: zephyr: Extend 54H tests with simple scheduler

These are also failing on 54H with RAM overflow.

Signed-off-by: Chaitanya Tata <[email protected]>

Author: krish2718

scripts/quarantine_zephyr.yaml

@@ -439,6 +439,8 @@
     - drivers.gpio.build
     - sample.perf
     - .*secure_storage.*
+    - kernel.scheduler.simple_timeslicing
+    - kernel.scheduler.simple_no_timeslicing
   platforms:
     - [email protected]/nrf54h20/cpuppr
   comment: "region RAM/FLASH overflowed"

west.yml

@@ -65,7 +65,7 @@ manifest:
     # https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/guides/modules.html
     - name: zephyr
       repo-path: sdk-zephyr
-      revision: pull/2724/head
+      revision: cb2537e877c693f40d9a24e800f1a5e6da133ca7
       import:
         # In addition to the zephyr repository itself, NCS also
         # imports the contents of zephyr/west.yml at the above