85xx: expose cpu identification

The current cpu identification code is used just to return the name
of the processor at boot.  There are some other locations that the name
is useful (device tree setup).  Expose the functionality to other bits
of code.

Also, drop the 'E' suffix and add it on by looking at the SVR version
when we print this out.  This is mainly to allow the most flexible use
of the name.  The device tree code tends to not care about the 'E' suffix.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

include/asm-ppc/processor.h

@@ -960,6 +960,17 @@ n:
 #define SR15	15
 
 #ifndef __ASSEMBLY__
+
+struct cpu_type {
+	char name[15];
+	u32 soc_ver;
+};
+
+struct cpu_type *identify_cpu(uint ver);
+
+#define CPU_TYPE_ENTRY(n, v) \
+	{ .name = #n, .soc_ver = SVR_##v, }
+
 #ifndef CONFIG_MACH_SPECIFIC
 extern int _machine;
 extern int have_of;