Replace dcorch-patch-api-proxy with dcorch-usm-api-proxy

This commit replaces the dcorch-patch-api-proxy service with the
dcorch-usm-api-proxy following its removal in 1.

Test plan:
1. PASS: All tox checks are successfull.

[1] https://review.opendev.org/c/starlingx/distcloud/+/949947

Story: 2011311
Task: 52249

Change-Id: Ic90eacc22852381f9c4c4165a578ce7ca326ca44
Signed-off-by: Raphael <Raphael.Lima@windriver.com>

patch-scripts/EXAMPLE_DC/scripts/distcloud-restart-example

@@ -31,7 +31,7 @@ then
     processes_to_restart="dcmanager-manager dcmanager-api dcmanager-audit-worker \
                           dcmanager-audit dcmanager-orchestrator \
                           dcorch-engine dcorch-sysinv-api-proxy dcdbsync-api \
-                          dcorch-patch-api-proxy dcorch-identity-api-proxy"
+                          dcorch-usm-api-proxy dcorch-identity-api-proxy"
     /usr/local/sbin/patch-restart-processes ${processes_to_restart}
     if [ $? != 0 ] ; then
         loginfo "patching restart failed"