rtc: goldfish: remove dependency to OF

We want to use the goldfish RTC on a machine without OF.
As there is no real dependency on it, remove the OF dependency from the
goldfish entry in Kconfig
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210323221430.3735147-2-laurent@vivier.eu

drivers/rtc/Kconfig

@@ -1899,7 +1899,7 @@ config RTC_DRV_HID_SENSOR_TIME
 
 config RTC_DRV_GOLDFISH
 	tristate "Goldfish Real Time Clock"
-	depends on OF && HAS_IOMEM
+	depends on HAS_IOMEM
 	help
 	  Say yes to enable RTC driver for the Goldfish based virtual platform.