i2c/mpc: make data used as *of_device_id.data const

Since of_device_id.data is declared as a pointer to const data a few
more consts can be added in this driver.

[ukl: split Arnd's patch by driver]
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

drivers/i2c/busses/i2c-mpc.c

@@ -730,24 +730,24 @@ static int mpc_i2c_resume(struct device *dev)
 SIMPLE_DEV_PM_OPS(mpc_i2c_pm_ops, mpc_i2c_suspend, mpc_i2c_resume);
 #endif
 
-static struct mpc_i2c_data mpc_i2c_data_512x __devinitdata = {
+static const struct mpc_i2c_data mpc_i2c_data_512x __devinitdata = {
 	.setup = mpc_i2c_setup_512x,
 };
 
-static struct mpc_i2c_data mpc_i2c_data_52xx __devinitdata = {
+static const struct mpc_i2c_data mpc_i2c_data_52xx __devinitdata = {
 	.setup = mpc_i2c_setup_52xx,
 };
 
-static struct mpc_i2c_data mpc_i2c_data_8313 __devinitdata = {
+static const struct mpc_i2c_data mpc_i2c_data_8313 __devinitdata = {
 	.setup = mpc_i2c_setup_8xxx,
 };
 
-static struct mpc_i2c_data mpc_i2c_data_8543 __devinitdata = {
+static const struct mpc_i2c_data mpc_i2c_data_8543 __devinitdata = {
 	.setup = mpc_i2c_setup_8xxx,
 	.prescaler = 2,
 };
 
-static struct mpc_i2c_data mpc_i2c_data_8544 __devinitdata = {
+static const struct mpc_i2c_data mpc_i2c_data_8544 __devinitdata = {
 	.setup = mpc_i2c_setup_8xxx,
 	.prescaler = 3,
 };