Blackfin arch: punt CONFIG_BFIN -- we already have CONFIG_BLACKFIN

Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>

diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index e5cdc02..1e6715e 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -447,7 +447,7 @@
 
 config RTC_DRV_BFIN
 	tristate "Blackfin On-Chip RTC"
-	depends on BFIN
+	depends on BLACKFIN
 	help
 	  If you say yes here you will get support for the
 	  Blackfin On-Chip Real Time Clock.