manfiest: sdk-trusted-firmware-m: Pull parition fix for nRF71

For nRF7120 pull the partition adjustment fix.

Signed-off-by: Chaitanya Tata <Chaitanya.Tata@nordicsemi.no>

Author: krish2718

west.yml

@@ -150,7 +150,7 @@ manifest:
     - name: trusted-firmware-m
       repo-path: sdk-trusted-firmware-m
       path: modules/tee/tf-m/trusted-firmware-m
-      revision: e476105018a2bf2dd8f87bca30a8e766846b4048
+      revision: pull/256/head
     - name: psa-arch-tests
       repo-path: sdk-psa-arch-tests
       path: modules/tee/tf-m/psa-arch-tests