PHYLIB: Kconfig: Fix the dependency on S390

PHYLIB was first marked as BROKEN on S390, then the enclosing menu marked
as non-S390, then the two dependencies merged with the conversion to
menuconfig.  Reduce to non-S390.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

drivers/net/phy/Kconfig

@@ -5,7 +5,7 @@
 menuconfig PHYLIB
 	tristate "PHY Device support and infrastructure"
 	depends on !S390
-	depends on NET_ETHERNET && (BROKEN || !S390)
+	depends on NET_ETHERNET
 	help
 	  Ethernet controllers are usually attached to PHY
 	  devices.  This option provides infrastructure for