configs: rockchip: add USB configs for evb-rv1108 board

configs: rockchip: add USB configs for evb-rv1108 board

This patch adds USB configs to support the USB OTG port(consist
of DWC2 controller) and the USB Host port(consist of EHCI and OHCI
controllers) on evb-rv1108 board, and also support fastboot over
USB and USB mass storage.

Signed-off-by: William Wu <william.wu@rock-chips.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>