clk: qcom: gcc-sm8250: use ARRAY_SIZE instead of specifying num_parents

[ Upstream commit c864cd5f ]

Use ARRAY_SIZE() instead of manually specifying num_parents. This makes
adding/removing entries to/from parent_data easy and errorproof.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20210405224743.590029-33-dmitry.baryshkov@linaro.org


Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Stable-dep-of: 783cb693 ("clk: qcom: gcc-sm8250: Fix gcc_sdcc2_apps_clk_src")
Signed-off-by: Sasha Levin <sashal@kernel.org>