missing include for ntohl()

[Andrew Cagney <andrew.cagney%gmail.com@localhost>]

Index: usr.bin/mkubootimage/mkubootimage.c
===================================================================
RCS file: /cvsroot/src/usr.bin/mkubootimage/mkubootimage.c,v
retrieving revision 1.33
diff -u -p -r1.33 mkubootimage.c
--- usr.bin/mkubootimage/mkubootimage.c    21 May 2024 04:01:26 -0000    1.33
+++ usr.bin/mkubootimage/mkubootimage.c    9 Oct 2024 13:09:14 -0000
@@ -37,6 +37,7 @@ __RCSID("$NetBSD: mkubootimage.c,v 1.33
 #include <sys/endian.h>
 #include <sys/param.h>
 #include <sys/uio.h>
+#include <arpa/inet.h>
 #include <err.h>
 #include <errno.h>
 #include <fcntl.h>