sh: Fixup cpu_data references for the non-boot CPUs.

There are a lot of bogus cpu_data-> references that only end up working
for the boot CPU, convert these to current_cpu_data to fixup SMP.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

include/asm-sh/processor.h

@@ -27,8 +27,6 @@
 #define CCN_CVR		0xff000040
 #define CCN_PRR		0xff000044
 
-const char *get_cpu_subtype(void);
-
 /*
  *  CPU type and hardware bug flags. Kept separately for each CPU.
  *
@@ -289,5 +287,8 @@ extern int vsyscall_init(void);
 #define vsyscall_init() do { } while (0)
 #endif
 
+/* arch/sh/kernel/setup.c */
+const char *get_cpu_subtype(struct sh_cpuinfo *c);
+
 #endif /* __KERNEL__ */
 #endif /* __ASM_SH_PROCESSOR_H */