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/spi/pxa2xx_spi.c b/drivers/spi/pxa2xx_spi.c
index c8c2b69..c2f707e 100644
--- a/drivers/spi/pxa2xx_spi.c
+++ b/drivers/spi/pxa2xx_spi.c
@@ -1709,7 +1709,7 @@
 	return 0;
 }
 
-static struct dev_pm_ops pxa2xx_spi_pm_ops = {
+static const struct dev_pm_ops pxa2xx_spi_pm_ops = {
 	.suspend	= pxa2xx_spi_suspend,
 	.resume		= pxa2xx_spi_resume,
 };