clk: mediatek: Fix resource leak in mtk_clk_simple_probe

Release clock data when clock driver probe fail to fix
possible resource leak.

Signed-off-by: Chun-Jie Chen <chun-jie.chen@mediatek.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://lore.kernel.org/r/20210914021633.26377-6-chun-jie.chen@mediatek.com


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