[ARM] 2866/1: add i.MX set_mctrl / get_mctrl functions

Patch from Sascha Hauer

This patch adds support for setting and getting RTS / CTS via
set_mtctrl / get_mctrl functions.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index e0239a1..7d8bcb3 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -447,7 +447,7 @@
 
 config SGI_IOC3_ETH
 	bool "SGI IOC3 Ethernet"
-	depends on NET_ETHERNET && PCI && SGI_IP27
+	depends on NET_ETHERNET && PCI && SGI_IP27 && BROKEN
 	select CRC32
 	select MII
 	help