manifest: Update sdk-mcuboot

Updates MCUboot to pull in upstream changes

Signed-off-by: Jamie McCrae <[email protected]>

Author: nordicjm

west.yml

@@ -132,7 +132,7 @@ manifest:
           compare-by-default: true
     - name: mcuboot
       repo-path: sdk-mcuboot
-      revision: 3897a7b0f645f3c79829bd6840fc3502ea1bdacb
+      revision: 7fd6163e6ca5d069b9cc26f2d6746bad3f8bc9e7
       path: bootloader/mcuboot
     - name: qcbor
       url: https://github.com/laurencelundblade/QCBOR