manifest: Update sdk-mcuboot

Updates mcuboot to select experimental when compression is used

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: fc8a2ec4b062a1860b0271de61aba9534ce6a3d6
+      revision: pull/375/head
       path: bootloader/mcuboot
     - name: qcbor
       url: https://github.com/laurencelundblade/QCBOR