dt-bindings: rcar-gen3-phy-usb2: Add bindings for r8a77990

This patch adds suuport for r8a77990 (R-Car E3).

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
1 file changed