arm64: zynqmp: Use DWC3 generic driver and DM_USB

Remove harcoded XHCI lists and detect mode, speed based on DT.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Serial-changes: 2
- Remove also XHCI macros from hardware.h
- Remove additional new line in zcu106
diff --git a/configs/xilinx_zynqmp_zcu100_revC_defconfig b/configs/xilinx_zynqmp_zcu100_revC_defconfig
index 3dd6ae9..2a6a5a6 100644
--- a/configs/xilinx_zynqmp_zcu100_revC_defconfig
+++ b/configs/xilinx_zynqmp_zcu100_revC_defconfig
@@ -73,6 +73,7 @@
 CONFIG_USB_XHCI_ZYNQMP=y
 CONFIG_USB_DWC3=y
 CONFIG_USB_DWC3_GADGET=y
+CONFIG_USB_DWC3_GENERIC=y
 CONFIG_USB_ULPI_VIEWPORT=y
 CONFIG_USB_ULPI=y
 CONFIG_USB_STORAGE=y