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/input/misc/pcspkr.c b/drivers/input/misc/pcspkr.c
index 21cb755..ea4e1fd 100644
--- a/drivers/input/misc/pcspkr.c
+++ b/drivers/input/misc/pcspkr.c
@@ -127,7 +127,7 @@
 	pcspkr_event(NULL, EV_SND, SND_BELL, 0);
 }
 
-static struct dev_pm_ops pcspkr_pm_ops = {
+static const struct dev_pm_ops pcspkr_pm_ops = {
 	.suspend = pcspkr_suspend,
 };