tools/rcutorture: Fix position of -lgcc in mkinitrd.sh

The -lgcc command-line argument is placed poorly in the build options,
which can result in build failures, for exapmle, on ARM when uidiv()
is required.  This commit therefore places the -lgcc argument after the
source files.

Fixes: b94ec368 ("rcutorture: Make use of nolibc when available")
Tested-by: Valentin Schneider <valentin.schneider@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com> [arm64]
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

tools/testing/selftests/rcutorture/bin/mkinitrd.sh

@@ -70,7 +70,7 @@ if echo -e "#if __x86_64__||__i386__||__i486__||__i586__||__i686__" \
 	# architecture supported by nolibc
         ${CROSS_COMPILE}gcc -fno-asynchronous-unwind-tables -fno-ident \
 		-nostdlib -include ../../../../include/nolibc/nolibc.h \
-		-lgcc -s -static -Os -o init init.c
+		-s -static -Os -o init init.c -lgcc
 else
 	${CROSS_COMPILE}gcc -s -static -Os -o init init.c
 fi