clk: qcom: gpucc-sm6375: Configure CX_GDSC disable wait value

Configure the disable wait value on the CX GDSC to ensure we don't get
any undefined behavior. This was omitted when first adding the driver.

Fixes: 8397e242 ("clk: qcom: Add GPU clock controller driver for SM6375")
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230329140135.2178957-1-konrad.dybcio@linaro.org