Initialize `rtentry_pool' with IPL_SOFTNET IPL

[Vitaliy Makkoveev]

Index: sys/net/route.c
===================================================================
RCS file: /cvs/src/sys/net/route.c,v
retrieving revision 1.418
diff -u -p -r1.418 route.c
--- sys/net/route.c     26 Apr 2023 16:09:44 -0000      1.418
+++ sys/net/route.c     26 Apr 2023 23:00:02 -0000
@@ -176,7 +176,7 @@ route_init(void)
 {
        rtcounters = counters_alloc(rts_ncounters);
 
-       pool_init(&rtentry_pool, sizeof(struct rtentry), 0, IPL_MPFLOOR, 0,
+       pool_init(&rtentry_pool, sizeof(struct rtentry), 0, IPL_SOFTNET, 0,
            "rtentry", NULL);
 
        while (rt_hashjitter == 0)