Building evbarm with USE_SSP fails

[Pierre Pronchery <khorben%defora.org@localhost>]

                Hi current-users@,

I just tried to compile an evbarm distribution with USE_SSP=yes in /etc/
mk.conf, and it fails in sys/arch/evbarm/stand/gzboot, where it fails 
with "undefined reference to `__stack_chk_guard'".

The following patch fixes it:

Index: Makefile.gzboot
===================================================================
RCS file: /cvsroot/src/sys/arch/evbarm/stand/gzboot/Makefile.gzboot,v
retrieving revision 1.19
diff -p -u -r1.19 Makefile.gzboot
--- Makefile.gzboot     6 Aug 2012 02:14:15 -0000       1.19
+++ Makefile.gzboot     13 Aug 2012 09:27:30 -0000
@@ -49,6 +49,7 @@ CPPFLAGS+= -DMAXIMAGESIZE=${MAXIMAGESIZE
 CPPFLAGS+= -DLOADADDR=${LOADADDR}
 
 COPTS+=        -ffreestanding
+COPTS+=        -fno-stack-protector
 CWARNFLAGS+= -Werror
 CWARNFLAGS+= -Wall -Wmissing-prototypes -Wstrict-prototypes -Wpointer-
arith
 
Ok to commit?

Cheers,
-- 
khorben