soc: mediatek: mtk-devapc: Switch to devm_clk_get_enabled()

[ Upstream commit 916120df ]

This driver does exactly devm_clk_get() and clk_prepare_enable() right
after, which is exactly what devm_clk_get_enabled() does: clean that
up by switching to the latter.

This commit brings no functional changes.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20221006110935.59695-1-angelogioacchino.delregno@collabora.com


Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Stable-dep-of: c0eb059a ("soc: mediatek: mtk-devapc: Fix leaking IO map on error paths")
Signed-off-by: Sasha Levin <sashal@kernel.org>