rtc: replace remaining __FUNCTION__ occurrences

__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: David Brownell <david-b@pacbell.net>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/rtc/rtc-at91sam9.c b/drivers/rtc/rtc-at91sam9.c
index 56728a2..38d8742 100644
--- a/drivers/rtc/rtc-at91sam9.c
+++ b/drivers/rtc/rtc-at91sam9.c
@@ -288,7 +288,7 @@
 
 	rtc_update_irq(rtc->rtcdev, 1, events);
 
-	pr_debug("%s: num=%ld, events=0x%02lx\n", __FUNCTION__,
+	pr_debug("%s: num=%ld, events=0x%02lx\n", __func__,
 		events >> 8, events & 0x000000FF);
 
 	return IRQ_HANDLED;