EDAC: Constify of_device_id array

of_device_id is always used as const. See driver.of_match_table and open
firmware functions.

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Doug Thompson <dougthompson@xmission.com>
Cc: Robert Richter <rric@kernel.org>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Johannes Thumshirn <johannes.thumshirn@men.de>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Sören Brinkmann <soren.brinkmann@xilinx.com>
Cc: linux-edac@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/1426535685-25996-10-git-send-email-fabf@skynet.be
Signed-off-by: Borislav Petkov <bp@suse.de>

drivers/edac/mpc85xx_edac.c

@@ -670,7 +670,7 @@ static int mpc85xx_l2_err_remove(struct platform_device *op)
 	return 0;
 }
 
-static struct of_device_id mpc85xx_l2_err_of_match[] = {
+static const struct of_device_id mpc85xx_l2_err_of_match[] = {
 /* deprecate the fsl,85.. forms in the future, 2.6.30? */
 	{ .compatible = "fsl,8540-l2-cache-controller", },
 	{ .compatible = "fsl,8541-l2-cache-controller", },
@@ -1160,7 +1160,7 @@ static int mpc85xx_mc_err_remove(struct platform_device *op)
 	return 0;
 }
 
-static struct of_device_id mpc85xx_mc_err_of_match[] = {
+static const struct of_device_id mpc85xx_mc_err_of_match[] = {
 /* deprecate the fsl,85.. forms in the future, 2.6.30? */
 	{ .compatible = "fsl,8540-memory-controller", },
 	{ .compatible = "fsl,8541-memory-controller", },