const: constify remaining dev_pm_ops

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/net/dm9000.c b/drivers/net/dm9000.c
index 0cbe3c0..b377300 100644
--- a/drivers/net/dm9000.c
+++ b/drivers/net/dm9000.c
@@ -1646,7 +1646,7 @@
 	return 0;
 }
 
-static struct dev_pm_ops dm9000_drv_pm_ops = {
+static const struct dev_pm_ops dm9000_drv_pm_ops = {
 	.suspend	= dm9000_drv_suspend,
 	.resume		= dm9000_drv_resume,
 };