riscv: dts: starfive: visionfive 2: Enable usb0

usb0 was disabled by mistake when merging, so enable it.

Fixes: e7c304c0 ("riscv: dts: starfive: jh7110: add the node and pins configuration for tdm")
Signed-off-by: Hal Feng <hal.feng@starfivetech.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>