Old deprecated do_gettimeofday() got removed in 5.0.

Switch to new Y2038 safe code.

Signed-off-by: Thomas Backlund <tmb@mageia.org>

--- ./net/ipv4/netfilter/ipt_IFWLOG.c.old	2019-03-05 22:28:19.599983866 +0200
+++ ./net/ipv4/netfilter/ipt_IFWLOG.c	2019-03-06 12:54:11.069469427 +0200
@@ -89,7 +89,6 @@ static void ipt_IFWLOG_packet(const stru
 	struct udphdr udph;
 	struct nl_msg msg;
 	struct iphdr _iph, *ih;
-	struct timeval tv;
 
 	memset(&msg, 0, sizeof(struct nl_msg));
 
@@ -127,8 +126,7 @@ static void ipt_IFWLOG_packet(const stru
 	}
 
 	/* save timetamp */
-	do_gettimeofday((struct timeval *)&tv);
-        msg.timestamp_sec = tv.tv_sec;
+        msg.timestamp_sec = ktime_get_real_seconds();
 
 	send_packet(&msg);
 }