clk: qcom: gpucc-msm8998: Use ARRAY_SIZE for num_parents

Where possible, use ARRAY_SIZE to determine the number of parents in
clk_parent_data, instead of hardcoding it.

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
Link: https://lore.kernel.org/r/20210911121340.261920-5-marijn.suijten@somainline.org


Signed-off-by: Stephen Boyd <sboyd@kernel.org>