ARM: mxs/tx28: add __initconst for fec pdata

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

arch/arm/mach-mxs/module-tx28.c

@@ -66,11 +66,11 @@ static const iomux_cfg_t tx28_fec1_pads[] __initconst = {
 	MX28_PAD_ENET0_CRS__ENET1_RX_EN,
 };
 
-static struct fec_platform_data tx28_fec0_data = {
+static const struct fec_platform_data tx28_fec0_data __initconst = {
 	.phy = PHY_INTERFACE_MODE_RMII,
 };
 
-static struct fec_platform_data tx28_fec1_data = {
+static const struct fec_platform_data tx28_fec1_data __initconst = {
 	.phy = PHY_INTERFACE_MODE_RMII,
 };