dt-bindings: clock: Add support for QCS404 clock controllers

Qualcomm Technologies, Inc. Common Block PLL Controller Binding

---------------------------------------------------------------

Required properties :

- compatible : shall contain only the following:

			"qcom,cmn_blk_pll"

- reg : shall contain base register location and size.

- reg-names : "cmn_blk".

- clock-names : Shall contain "misc_reset", "ahb_clk", "aon_clk".

- clocks : phandle + clock reference to misc_reset, ahb and aon clock.

- #clock-cells : shall contain 1.

Example :

	clock_cmn_blk_pll@2f780 {

		compatible = "qcom,cmn_blk_pll";

		reg = <0x2f780 0x4>;

		reg-names = "cmn_blk";

		clocks = <&clock_gcc GCC_BIAS_PLL_MISC_RESET_CLK>,

			<&clock_gcc GCC_BIAS_PLL_AHB_CLK>,

			<&clock_gcc GCC_BIAS_PLL_AON_CLK>;

		clock-names = "misc_reset_clk", "ahb_clk", "aon_clk";

		resets = <&clock_gcc GCC_BIAS_PLL_BCR>;

		reset-names = "cmn_blk_pll_reset";

		#clock-cells = <1>;

	};

			"qcom,direwolf-debugcc"

			"qcom,blair-debugcc"

			"qcom,scuba-debugcc"

			"qcom,qcs404-debugcc"

- qcom,gcc: phandle to the GCC device node.

- qcom,videocc: phandle to the Video CC device node.

			"qcom,direwolf-gcc"

			"qcom,blair-gcc"

			"qcom,scuba-gcc"

			"qcom,qcs404-gcc-mdss"

- reg : shall contain base register location and length

- vdd_cx-supply: The vdd_cx logic rail supply.