MINOR: resolvers: Directly call srvrq_update_srv_state() when possible

When the server status must be updated from the result of a SRV resolution,
we can directly call srvrq_update_srv_state(). It is simpler and this avoid
a test on the server DNS resolution.

This patch is mandatory for the next commit. It also rely on "MINOR:
resolvers: Directly call srvrq_update_srv_state() when possible".
diff --git a/src/server.c b/src/server.c
index b8e9354..b631a22 100644
--- a/src/server.c
+++ b/src/server.c
@@ -3295,7 +3295,7 @@
 		HA_SPIN_LOCK(SERVER_LOCK, &s->lock);
 		if (s->srvrq == srvrq) {
 			resolv_unlink_resolution(s->resolv_requester);
-			snr_update_srv_status(s, 1);
+			srvrq_update_srv_status(s, 1);
 			free(s->hostname);
 			free(s->hostname_dn);
 			s->hostname        = NULL;