mach-ux500: move keymaps to new file

Move keylayouts to a dedicated file and plug these keylayouts
for input platform data. This will make addition of new and custom
keylayouts localized.

Signed-off-by: Sundar Iyer <sundar.iyer@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
diff --git a/arch/arm/mach-ux500/devices-db8500.c b/arch/arm/mach-ux500/devices-db8500.c
index a7b0a18..23c695d5 100644
--- a/arch/arm/mach-ux500/devices-db8500.c
+++ b/arch/arm/mach-ux500/devices-db8500.c
@@ -128,7 +128,7 @@
 	},
 };
 
-struct platform_device ux500_ske_keypad_device = {
+struct platform_device u8500_ske_keypad_device = {
 	.name = "nmk-ske-keypad",
 	.id = -1,
 	.num_resources = ARRAY_SIZE(keypad_resources),