MIPS: BCM47XX: Use __initdata for the bcm47xx_leds_pdata

This struct variable is used during init only. It gets passed to the
gpio_led_register_device() which creates its own data copy. That allows
using __initdata and saving some minimal amount of memory.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Reviewed-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/18928/Signed-off-by: James Hogan <jhogan@kernel.org>

arch/mips/bcm47xx/leds.c

@@ -538,7 +538,7 @@ bcm47xx_leds_simpletech_simpleshare[] __initconst = {
  * Init
  **************************************************/
 
-static struct gpio_led_platform_data bcm47xx_leds_pdata;
+static struct gpio_led_platform_data bcm47xx_leds_pdata __initdata;
 
 #define bcm47xx_set_pdata(dev_leds) do {				\
 	bcm47xx_leds_pdata.leds = dev_leds;				\