sh: replace remaining __FUNCTION__ occurrences

__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index e2ed6dd..53dde06 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -328,7 +328,7 @@
 	/* We only have ZONE_NORMAL, so this is easy.. */
 	ret = __add_pages(pgdat->node_zones + ZONE_NORMAL, start_pfn, nr_pages);
 	if (unlikely(ret))
-		printk("%s: Failed, __add_pages() == %d\n", __FUNCTION__, ret);
+		printk("%s: Failed, __add_pages() == %d\n", __func__, ret);
 
 	return ret;
 }