arm64: dts: qcom: sm8450: drop USB PHY clock index

The QMP USB PHY provides a single clock so drop the redundant clock
index.
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220705114032.22787-9-johan+linaro@kernel.org

arch/arm64/boot/dts/qcom/sm8450.dtsi

@@ -2016,7 +2016,7 @@ usb_1_ssphy: phy@88e9200 {
 				      <0 0x088e9800 0 0x200>,
 				      <0 0x088e9a00 0 0x100>;
 				#phy-cells = <0>;
-				#clock-cells = <1>;
+				#clock-cells = <0>;
 				clocks = <&gcc GCC_USB3_PRIM_PHY_PIPE_CLK>;
 				clock-names = "pipe0";
 				clock-output-names = "usb3_phy_pipe_clk_src";