rpc: Fix build error for virNetServerNew ATTRIBUTE_NONNULL values

Commit 5a148ce8 altered the virNetServerNew to remove a parameter
but neglected to update the ATTRIBUTE_NONNULL's which causes a build
failure for when checking is enabled such as when lv_cv_static_analysis
is enabled.
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>

src/rpc/virnetserver.h

@@ -42,7 +42,7 @@ virNetServerPtr virNetServerNew(const char *name,
                                 virNetServerClientPrivPreExecRestart clientPrivPreExecRestart,
                                 virFreeCallback clientPrivFree,
                                 void *clientPrivOpaque)
-    ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(11) ATTRIBUTE_NONNULL(13);
+    ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(10) ATTRIBUTE_NONNULL(12);
 
 virNetServerPtr virNetServerNewPostExecRestart(virJSONValuePtr object,
                                                const char *name,