rtc: rtc-sh: SH-2A support.

Trivial support for the SH-2A on-chip RTC.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 5900c77..45e4b96 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -404,7 +404,7 @@
 
 config RTC_DRV_SH
 	tristate "SuperH On-Chip RTC"
-	depends on RTC_CLASS && (CPU_SH3 || CPU_SH4 || CPU_SH5)
+	depends on RTC_CLASS && SUPERH
 	help
 	  Say Y here to enable support for the on-chip RTC found in
 	  most SuperH processors.