arm: imx: make various struct sys_timer static

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
diff --git a/arch/arm/mach-imx/mach-pcm037.c b/arch/arm/mach-imx/mach-pcm037.c
index 5fddf94..10c9795 100644
--- a/arch/arm/mach-imx/mach-pcm037.c
+++ b/arch/arm/mach-imx/mach-pcm037.c
@@ -683,7 +683,7 @@
 	mx31_clocks_init(26000000);
 }
 
-struct sys_timer pcm037_timer = {
+static struct sys_timer pcm037_timer = {
 	.init	= pcm037_timer_init,
 };