clk: qcom: gcc-msm8939: Add missing CAMSS CCI bus clock

Standard CCI bus clock clocks are 19.2 MHz and 37.5 MHz. We already define
the 19.2 MHz but are missing the 37.5 MHz.

See qcom kernel drivers/clk/qcom/clock-gcc-8936.c::ftbl_gcc_camss_cci_clk[]

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220712125922.3461675-3-bryan.odonoghue@linaro.org