CLK_S_ICN_REG_0 hasn't existed for a while now.  This was renamed
over a few commits, then finally removed in commit 
5aa02b9 (ARM:
STi: DT: STiH415: Remove unused CLK_S_ICN_REG_0 fixed clock).
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Maxime Coquelin <maxime.coquelin@st.com>
Acked-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
        compatible      = "st,comms-ssc4-i2c";
        reg             = <0xfed40000 0x110>;
        interrupts      =  <GIC_SPI 187 IRQ_TYPE_LEVEL_HIGH>;
-       clocks          = <&CLK_S_ICN_REG_0>;
+       clocks          = <&clk_s_a0_ls CLK_ICN_REG>;
        clock-names     = "ssc";
        clock-frequency = <400000>;
        pinctrl-names   = "default";