phy: Add support for drivers to enable USB on QCS404 SoC

QCS404 SoC supports two types of PHY, one supports high speed mode or
USB2 PHY and the other supports super speed mode or USB3 PHY. So add
corresponding PHY drivers.

Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
diff --git a/drivers/phy/qcom/Makefile b/drivers/phy/qcom/Makefile
index 4a340e3..2113f17 100644
--- a/drivers/phy/qcom/Makefile
+++ b/drivers/phy/qcom/Makefile
@@ -1,2 +1,4 @@
 obj-$(CONFIG_PHY_QCOM_IPQ4019_USB) += phy-qcom-ipq4019-usb.o
 obj-$(CONFIG_MSM8916_USB_PHY) += msm8916-usbh-phy.o
+obj-$(CONFIG_PHY_QCOM_USB_HS_28NM) += phy-qcom-usb-hs-28nm.o
+obj-$(CONFIG_PHY_QCOM_USB_SS) += phy-qcom-usb-ss.o