fbdev: sh_mobile_meram: Fix defined but not used compiler warnings

If both CONFIG_PM_SLEEP and CONFIG_PM_RUNTIME are not set:

drivers/video/sh_mobile_meram.c:573: warning: ‘sh_mobile_meram_suspend’ defined but not used
drivers/video/sh_mobile_meram.c:597: warning: ‘sh_mobile_meram_resume’ defined but not used

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

drivers/video/sh_mobile_meram.c

@@ -569,6 +569,7 @@ EXPORT_SYMBOL_GPL(sh_mobile_meram_cache_update);
  * Power management
  */
 
+#if defined(CONFIG_PM_SLEEP) || defined(CONFIG_PM_RUNTIME)
 static int sh_mobile_meram_suspend(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
@@ -611,6 +612,7 @@ static int sh_mobile_meram_resume(struct device *dev)
 		meram_write_reg(priv->base, common_regs[i], priv->regs[i]);
 	return 0;
 }
+#endif /* CONFIG_PM_SLEEP || CONFIG_PM_RUNTIME */
 
 static UNIVERSAL_DEV_PM_OPS(sh_mobile_meram_dev_pm_ops,
 			    sh_mobile_meram_suspend,