Makefile: Move phy rules into drivers/phy

These don't belong in the drivers Makefile so move them down into
the correct place.

Signed-off-by: Simon Glass <sjg@chromium.org>
[trini: Fixup some missing dependencies this exposed]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile
index 0f2b63a..b2285c4 100644
--- a/drivers/phy/Makefile
+++ b/drivers/phy/Makefile
@@ -3,6 +3,11 @@
 # Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/
 # Written by Jean-Jacques Hiblot  <jjhiblot@ti.com>
 
+obj-y += allwinner/
+obj-y += marvell/
+obj-y += rockchip/
+obj-y += socionext/
+
 obj-$(CONFIG_$(SPL_)PHY) += phy-uclass.o
 obj-$(CONFIG_$(SPL_)NOP_PHY) += nop-phy.o
 obj-$(CONFIG_MIPI_DPHY_HELPERS) += phy-core-mipi-dphy.o