[PATCH] pktgen: fix errata in show results

The units in show_results in pktgen were not correct.
The results are in usec but it was displayed nsec.

Reported-by: Jong-won Lee <redacted>
Signed-off-by: Daniel Turull <redacted>
---

diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index d73b77a..f0aec6c 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c

@@ -3271,7 +3271,7 @@ static void show_results(struct pktgen_dev 

*pkt_dev, int nr_frags)
                      pkt_dev->started_at);
      ktime_t idle = ns_to_ktime(pkt_dev->idle_acc);

-    p += sprintf(p, "OK: %llu(c%llu+d%llu) nsec, %llu (%dbyte,%dfrags)\n",
+    p += sprintf(p, "OK: %llu(c%llu+d%llu) usec, %llu (%dbyte,%dfrags)\n",
               (unsigned long long)ktime_to_us(elapsed),
               (unsigned long long)ktime_to_us(ktime_sub(elapsed, idle)),
               (unsigned long long)ktime_to_us(idle),