phy: Remove ARCH_KIRKWOOD dependency

mach-kirkwood has been removed, now that kirkwood lives in mach-mvebu.
Depend on MACH_KIRKWOOD, which will be set when these SoCs are built
as part of mach-mvebv.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
index 6911152..261ad18 100644
--- a/drivers/phy/Kconfig
+++ b/drivers/phy/Kconfig
@@ -27,7 +27,7 @@
 
 config PHY_MVEBU_SATA
 	def_bool y
-	depends on ARCH_KIRKWOOD || ARCH_DOVE || MACH_DOVE || MACH_KIRKWOOD
+	depends on ARCH_DOVE || MACH_DOVE || MACH_KIRKWOOD
 	depends on OF
 	select GENERIC_PHY