ARM: imx: mark .dt_compat as const

Otherwise GCC will mark the .init.rodata section R/W, which causes
a compile error once we add other real R/O data.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>

arch/arm/mach-imx/imx31-dt.c

@@ -25,7 +25,7 @@ static void __init imx31_dt_init(void)
 	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
 }
 
-static const char *imx31_dt_board_compat[] __initconst = {
+static const char * const imx31_dt_board_compat[] __initconst = {
 	"fsl,imx31",
 	NULL
 };

arch/arm/mach-imx/imx35-dt.c

@@ -34,7 +34,7 @@ static void __init imx35_irq_init(void)
 	mx35_init_irq();
 }
 
-static const char *imx35_dt_board_compat[] __initconst = {
+static const char * const imx35_dt_board_compat[] __initconst = {
 	"fsl,imx35",
 	NULL
 };

arch/arm/mach-imx/mach-imx50.c

@@ -23,7 +23,7 @@ static void __init imx50_dt_init(void)
 	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
 }
 
-static const char *imx50_dt_board_compat[] __initconst = {
+static const char * const imx50_dt_board_compat[] __initconst = {
 	"fsl,imx50",
 	NULL
 };

arch/arm/mach-imx/mach-imx51.c

@@ -67,7 +67,7 @@ static void __init imx51_init_late(void)
 	imx51_pm_init();
 }
 
-static const char *imx51_dt_board_compat[] __initconst = {
+static const char * const imx51_dt_board_compat[] __initconst = {
 	"fsl,imx51",
 	NULL
 };

arch/arm/mach-imx/mach-imx53.c

@@ -41,7 +41,7 @@ static void __init imx53_init_late(void)
 	imx53_pm_init();
 }
 
-static const char *imx53_dt_board_compat[] __initconst = {
+static const char * const imx53_dt_board_compat[] __initconst = {
 	"fsl,imx53",
 	NULL
 };

arch/arm/mach-imx/mach-imx6q.c

@@ -396,7 +396,7 @@ static void __init imx6q_init_irq(void)
 	irqchip_init();
 }
 
-static const char *imx6q_dt_compat[] __initconst = {
+static const char * const imx6q_dt_compat[] __initconst = {
 	"fsl,imx6dl",
 	"fsl,imx6q",
 	NULL,

arch/arm/mach-imx/mach-imx6sl.c

@@ -70,7 +70,7 @@ static void __init imx6sl_init_irq(void)
 	irqchip_init();
 }
 
-static const char *imx6sl_dt_compat[] __initconst = {
+static const char * const imx6sl_dt_compat[] __initconst = {
 	"fsl,imx6sl",
 	NULL,
 };

arch/arm/mach-imx/mach-imx6sx.c

@@ -44,7 +44,7 @@ static void __init imx6sx_init_late(void)
 	imx6q_cpuidle_init();
 }
 
-static const char *imx6sx_dt_compat[] __initconst = {
+static const char * const imx6sx_dt_compat[] __initconst = {
 	"fsl,imx6sx",
 	NULL,
 };

arch/arm/mach-imx/mach-vf610.c

@@ -20,7 +20,7 @@ static void __init vf610_init_machine(void)
 	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
 }
 
-static const char *vf610_dt_compat[] __initconst = {
+static const char * const vf610_dt_compat[] __initconst = {
 	"fsl,vf610",
 	NULL,
 };