sh: Fixup machvec support.

This fixes up much of the machvec handling, allowing for it to be
overloaded on boot. Making practical use of this still requires
some Kconfig munging, however.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/include/asm-sh/setup.h b/include/asm-sh/setup.h
index 1583c6b..586a971 100644
--- a/include/asm-sh/setup.h
+++ b/include/asm-sh/setup.h
@@ -6,6 +6,7 @@
 #ifdef __KERNEL__
 
 int setup_early_printk(char *);
+void sh_mv_setup(void);
 
 #endif /* __KERNEL__ */