omap: Fix matrix_keymap_data usage

Otherwise we'll get compile errors like:

arch/arm/plat-omap/include/mach/keypad.h:38:1: warning: "KEY" redefined
arch/arm/plat-omap/include/mach/keypad.h:39:1: warning: "PERSISTENT_KEY" redefined
...

Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/mach-omap2/board-ldp.c b/arch/arm/mach-omap2/board-ldp.c
index ec6854c..d110a7f 100644
--- a/arch/arm/mach-omap2/board-ldp.c
+++ b/arch/arm/mach-omap2/board-ldp.c
@@ -80,7 +80,7 @@
 	},
 };
 
-static int ldp_twl4030_keymap[] = {
+static int board_keymap[] = {
 	KEY(0, 0, KEY_1),
 	KEY(1, 0, KEY_2),
 	KEY(2, 0, KEY_3),
@@ -101,11 +101,15 @@
 	0
 };
 
+static struct matrix_keymap_data board_map_data = {
+	.keymap			= board_keymap,
+	.keymap_size		= ARRAY_SIZE(board_keymap),
+};
+
 static struct twl4030_keypad_data ldp_kp_twl4030_data = {
+	.keymap_data	= &board_map_data,
 	.rows		= 6,
 	.cols		= 6,
-	.keymap		= ldp_twl4030_keymap,
-	.keymapsize	= ARRAY_SIZE(ldp_twl4030_keymap),
 	.rep		= 1,
 };