sh: Add plat_early_device_setup()

Add a plat_early_device_setup() function to allow
processor-specific code to register Early Platform Data.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/include/asm/device.h b/arch/sh/include/asm/device.h
index efd511d..8688a88 100644
--- a/arch/sh/include/asm/device.h
+++ b/arch/sh/include/asm/device.h
@@ -10,3 +10,5 @@
 int platform_resource_setup_memory(struct platform_device *pdev,
 				   char *name, unsigned long memsize);
 
+void plat_early_device_setup(void);
+