arm64: dts: qcom: sc7180: Remove clock for bluetooth on Trogdor

Removed voting for RPMH_RF_CLK2 which is not required as it is
getting managed by BT SoC through SW_CTRL line.

Cc: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Venkata Lakshmi Narayana Gubba <gubbaven@codeaurora.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20210301133318.v2.8.I80c268f163e6d49a70af1238be442b5de400c579@changeidSigned-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi

@@ -835,7 +835,6 @@ bluetooth: bluetooth {
 		vddrf-supply = <&pp1300_l2c>;
 		vddch0-supply = <&pp3300_l10c>;
 		max-speed = <3200000>;
-		clocks = <&rpmhcc RPMH_RF_CLK2>;
 	};
 };