phy: Add Rockchip PCIe PHY driver

Add the Rockchip PCIe PHY driver as part of
Generic PHY framework.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/drivers/phy/rockchip/Kconfig b/drivers/phy/rockchip/Kconfig
index 84cc7c8..2318e71 100644
--- a/drivers/phy/rockchip/Kconfig
+++ b/drivers/phy/rockchip/Kconfig
@@ -11,6 +11,13 @@
 	help
 	  Support for Rockchip USB2.0 PHY with Innosilicon IP block.
 
+config PHY_ROCKCHIP_PCIE
+	bool "Rockchip PCIe PHY Driver"
+	depends on ARCH_ROCKCHIP
+	select PHY
+	help
+	  Enable this to support the Rockchip PCIe PHY.
+
 config PHY_ROCKCHIP_TYPEC
 	bool "Rockchip TYPEC PHY Driver"
 	depends on ARCH_ROCKCHIP