mmc: sdhci-esdhc-imx: Constify driver data

Variant specific driver data doesn't change at run-time, so mark it as
const to reflect that.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

drivers/mmc/host/sdhci-esdhc-imx.c

@@ -146,38 +146,38 @@ struct esdhc_soc_data {
 	u32 flags;
 };
 
-static struct esdhc_soc_data esdhc_imx25_data = {
+static const struct esdhc_soc_data esdhc_imx25_data = {
 	.flags = ESDHC_FLAG_ERR004536,
 };
 
-static struct esdhc_soc_data esdhc_imx35_data = {
+static const struct esdhc_soc_data esdhc_imx35_data = {
 	.flags = ESDHC_FLAG_ERR004536,
 };
 
-static struct esdhc_soc_data esdhc_imx51_data = {
+static const struct esdhc_soc_data esdhc_imx51_data = {
 	.flags = 0,
 };
 
-static struct esdhc_soc_data esdhc_imx53_data = {
+static const struct esdhc_soc_data esdhc_imx53_data = {
 	.flags = ESDHC_FLAG_MULTIBLK_NO_INT,
 };
 
-static struct esdhc_soc_data usdhc_imx6q_data = {
+static const struct esdhc_soc_data usdhc_imx6q_data = {
 	.flags = ESDHC_FLAG_USDHC | ESDHC_FLAG_MAN_TUNING,
 };
 
-static struct esdhc_soc_data usdhc_imx6sl_data = {
+static const struct esdhc_soc_data usdhc_imx6sl_data = {
 	.flags = ESDHC_FLAG_USDHC | ESDHC_FLAG_STD_TUNING
 			| ESDHC_FLAG_HAVE_CAP1 | ESDHC_FLAG_ERR004536
 			| ESDHC_FLAG_HS200,
 };
 
-static struct esdhc_soc_data usdhc_imx6sx_data = {
+static const struct esdhc_soc_data usdhc_imx6sx_data = {
 	.flags = ESDHC_FLAG_USDHC | ESDHC_FLAG_STD_TUNING
 			| ESDHC_FLAG_HAVE_CAP1 | ESDHC_FLAG_HS200,
 };
 
-static struct esdhc_soc_data usdhc_imx7d_data = {
+static const struct esdhc_soc_data usdhc_imx7d_data = {
 	.flags = ESDHC_FLAG_USDHC | ESDHC_FLAG_STD_TUNING
 			| ESDHC_FLAG_HAVE_CAP1 | ESDHC_FLAG_HS200
 			| ESDHC_FLAG_HS400,