servicemanager: isDeclared error is 'INFO'

This is expected.

Bug: 215221304
Test: N/A
Change-Id: I0e9435d540b42a80c65103c7714f4583fc850e4b
diff --git a/cmds/servicemanager/ServiceManager.cpp b/cmds/servicemanager/ServiceManager.cpp
index 4374abe..555be1e 100644
--- a/cmds/servicemanager/ServiceManager.cpp
+++ b/cmds/servicemanager/ServiceManager.cpp
@@ -113,8 +113,8 @@
     if (!found) {
         // Although it is tested, explicitly rebuilding qualified name, in case it
         // becomes something unexpected.
-        LOG(ERROR) << "Could not find " << aname.package << "." << aname.iface << "/"
-                   << aname.instance << " in the VINTF manifest.";
+        LOG(INFO) << "Could not find " << aname.package << "." << aname.iface << "/"
+                  << aname.instance << " in the VINTF manifest.";
     }
 
     return found;