Convert CONFIG_MCFRTC et al to Kconfig

This converts the following to Kconfig:
   CONFIG_MCFRTC
   CONFIG_SYS_MCFRTC_BASE

While at it, remove '#undef RTC_DEBUG' from these config files.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 71777cd..7a6c6ef 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -168,6 +168,14 @@
 	  clock with a wide array of features and 50 bytes of general-purpose,
 	  battery-backed RAM. The driver supports access to the clock and RAM.
 
+config MCFRTC
+	bool "Use common CF RTC driver"
+	depends on M68K
+
+config SYS_MCFRTC_BASE
+	hex "Base address for RTC in immap.h"
+	depends on MCFRTC
+
 config RTC_M41T62
 	bool "Enable M41T62 driver"
 	help