[ARM] 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: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/plat-iop/pci.c

@@ -371,7 +371,7 @@ static int __init iop3xx_init_atu_setup(char *str)
 			default:
 				printk(KERN_DEBUG "\"%s\" malformed at "
 					    "character: \'%c\'",
-					    __FUNCTION__,
+					    __func__,
 					    *str);
 				*(str + 1) = '\0';
 			}