netdev: bfin_mac: drop experimental markings on RMII support

The code has been around for a long time now and is known to work on a
bunch of different parts/boards.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/Kconfig

@@ -880,8 +880,8 @@ config BFIN_RX_DESC_NUM
 	  Set the number of buffer packets used in driver.
 
 config BFIN_MAC_RMII
-	bool "RMII PHY Interface (EXPERIMENTAL)"
-	depends on BFIN_MAC && EXPERIMENTAL
+	bool "RMII PHY Interface"
+	depends on BFIN_MAC
 	default y if BFIN527_EZKIT
 	default n if BFIN537_STAMP
 	help