sh: Nopped out p3_cache_init() on SH-5 also.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/include/asm-sh/cpu-sh5/cacheflush.h b/include/asm-sh/cpu-sh5/cacheflush.h
index 847374b..45d12d6 100644
--- a/include/asm-sh/cpu-sh5/cacheflush.h
+++ b/include/asm-sh/cpu-sh5/cacheflush.h
@@ -27,6 +27,7 @@
 #define flush_dcache_mmap_unlock(mapping)	do { } while (0)
 
 #define flush_icache_page(vma, page)	do { } while (0)
+#define p3_cache_init()			do { } while (0)
 
 #endif /* __ASSEMBLY__ */