arm64: dts: renesas: r8a7795-es1: Drop extra zero from usb unit address

With W=1:

    arch/arm64/boot/dts/renesas/r8a7795-es1-salvator-x.dtb: Warning (simple_bus_reg): Node /soc/usb@ee0400000 simple-bus unit address format error, expected "ee040000"
    arch/arm64/boot/dts/renesas/r8a7795-es1-h3ulcb.dtb: Warning (simple_bus_reg): Node /soc/usb@ee0400000 simple-bus unit address format error, expected "ee040000"

Fixes: 291e0c49 ("arm64: dts: r8a7795: Add support for R-Car H3 ES2.0")
Fixes: 171f2ef8

 ("arm64: dts: r8a7795: Add USB3.0 host device nodes")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>