[POWERPC] Replace remaining __FUNCTION__ occurrences

__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/mm/init_32.c b/arch/powerpc/mm/init_32.c
index 59a725b..0c66a9f 100644
--- a/arch/powerpc/mm/init_32.c
+++ b/arch/powerpc/mm/init_32.c
@@ -276,7 +276,7 @@
 
 		kcore_mem = kmalloc(sizeof(struct kcore_list), GFP_ATOMIC);
 		if (!kcore_mem)
-			panic("%s: kmalloc failed\n", __FUNCTION__);
+			panic("%s: kmalloc failed\n", __func__);
 
 		/* must stay under 32 bits */
 		if ( 0xfffffffful - (unsigned long)__va(base) < size) {