OMAP3 Touchbook: fix board initialization

init_early hook runs too early for omap3_mux_init(), so the board
won't boot. Moved to init_machine, then it works just fine.

Signed-off-by: Radek Pilar <mrkva@mrkva.eu>
Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/mach-omap2/board-omap3touchbook.c b/arch/arm/mach-omap2/board-omap3touchbook.c
index 6a60f79..a35afe2 100644
--- a/arch/arm/mach-omap2/board-omap3touchbook.c
+++ b/arch/arm/mach-omap2/board-omap3touchbook.c
@@ -417,7 +417,6 @@
 
 static void __init omap3_touchbook_init_early(void)
 {
-	omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 	omap_board_config = omap3_touchbook_config;
 	omap_board_config_size = ARRAY_SIZE(omap3_touchbook_config);
 	omap2_init_common_infrastructure();
@@ -514,6 +513,7 @@
 
 static void __init omap3_touchbook_init(void)
 {
+	omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 	pm_power_off = omap3_touchbook_poweroff;
 
 	omap3_touchbook_i2c_init();