[POWERPC] 4xx: Adds decoding of 440SPE memory size to boot wrapper library

This adds a function to the bootwrapper 4xx library to decode memory
size on 440SPE processors.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
diff --git a/arch/powerpc/boot/4xx.h b/arch/powerpc/boot/4xx.h
index 6af14a0..5296350 100644
--- a/arch/powerpc/boot/4xx.h
+++ b/arch/powerpc/boot/4xx.h
@@ -11,7 +11,8 @@
 #ifndef _POWERPC_BOOT_4XX_H_
 #define _POWERPC_BOOT_4XX_H_
 
-void ibm4xx_fixup_memsize(void);
+void ibm4xx_sdram_fixup_memsize(void);
+void ibm440spe_fixup_memsize(void);
 void ibm4xx_denali_fixup_memsize(void);
 void ibm44x_dbcr_reset(void);
 void ibm40x_dbcr_reset(void);