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/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c
index ab64522..be27aa4 100644
--- a/drivers/platform/x86/acerhdf.c
+++ b/drivers/platform/x86/acerhdf.c
@@ -460,7 +460,7 @@
 	return 0;
 }
 
-static struct dev_pm_ops acerhdf_pm_ops = {
+static const struct dev_pm_ops acerhdf_pm_ops = {
 	.suspend = acerhdf_suspend,
 	.freeze  = acerhdf_suspend,
 };