daemon-util: Rename starting/stopping message constants

Currently, NOTIFY_READY from daemon-util.h conflicts with NOTIFY_READY
from NotifyState from service.h so let's rename the constants to avoid
the conflict.

src/resolve/resolved-manager.c

@@ -690,7 +690,7 @@ static int manager_dispatch_reload_signal(sd_event_source *s, const struct signa
         manager_flush_caches(m, LOG_INFO);
         manager_verify_all(m);
 
-        (void) sd_notify(/* unset= */ false, NOTIFY_READY);
+        (void) sd_notify(/* unset= */ false, NOTIFY_READY_MESSAGE);
         return 0;
 }
 

src/resolve/resolved.c

@@ -85,7 +85,7 @@ static int run(int argc, char *argv[]) {
         if (r < 0)
                 return log_error_errno(r, "Failed to drop remaining caps: %m");
 
-        notify_stop = notify_start(NOTIFY_READY, NOTIFY_STOPPING);
+        notify_stop = notify_start(NOTIFY_READY_MESSAGE, NOTIFY_STOPPING_MESSAGE);
 
         r = sd_event_loop(m->event);
         if (r < 0)