ARM: shmobile: parse DT and configure pinmux early on kzm9g-reference

GPIOs can be provided by the pinctrl subsystem, which can be initialised
by DT. Therefore DT has to be parsed before requesting GPIOs. Also non-DT
pinmux has to be configured early.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/mach-shmobile/board-kzm9g-reference.c

@@ -47,6 +47,7 @@ static void __init kzm_init(void)
 {
 	sh73a0_add_standard_devices_dt();
 	pinctrl_register_mappings(kzm_pinctrl_map, ARRAY_SIZE(kzm_pinctrl_map));
+	sh73a0_pinmux_init();
 
 #ifdef CONFIG_CACHE_L2X0
 	/* Early BRESP enable, Shared attribute override enable, 64K*8way */