fix krb5 compile with musl

package/krb5/patches/patch-src_lib_rpc_bindresvport_c

@@ -0,0 +1,10 @@
+--- krb5-1.11.3.orig/src/lib/rpc/bindresvport.c	2013-06-03 23:39:43.000000000 +0200
++++ krb5-1.11.3/src/lib/rpc/bindresvport.c	2013-08-14 14:52:36.000000000 +0200
+@@ -37,6 +37,7 @@
+ #include <sys/types.h>
+ #include <sys/errno.h>
+ #include <sys/socket.h>
++#include <netdb.h>
+ #include <netinet/in.h>
+ #include <gssrpc/rpc.h>
+ #include <errno.h>