manifest: Bring Zephyr with PSA RNG for NRF54H20

Brings Zephyr changes which automatically enable
the PSA crypto as the entropy generator for Zephyr.

Signed-off-by: Georgios Vasilakis <georgios.vasilakis@nordicsemi.no>

west.yml

@@ -72,7 +72,7 @@ manifest:
     # https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/guides/modules.html
     - name: zephyr
       repo-path: sdk-zephyr
-      revision: 5bb7bb0af17cbdbd13c06ed5ea1268ec9b9358fc
+      revision: pull/2008/head
       import:
         # In addition to the zephyr repository itself, NCS also
         # imports the contents of zephyr/west.yml at the above