net: phy: Correct Cygnus/Omega PHY driver prompt

The tristate prompt should have been replaced rather than defined a few
lines below, rebase mistake.

Fixes: 17cc982 ("net: phy: Move Omega PHY entry to Cygnus PHY driver")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/phy/Kconfig

@@ -270,10 +270,9 @@ config BCM87XX_PHY
 	  Currently supports the BCM8706 and BCM8727 10G Ethernet PHYs.
 
 config BCM_CYGNUS_PHY
-	tristate "Broadcom Cygnus SoC internal PHY"
+	tristate "Broadcom Cygnus/Omega SoC internal PHY"
 	depends on ARCH_BCM_IPROC || COMPILE_TEST
 	depends on MDIO_BCM_IPROC
-	tristate "Broadcom Cygnus/Omega SoC internal PHY"
 	select BCM_NET_PHYLIB
 	---help---
 	  This PHY driver is for the 1G internal PHYs of the Broadcom