After this patchset, mtk_vcodec_release_enc_pm has only one line.
then remove that function, use pm_runtime_disable instead.
meanwhile, mtk_vcodec_init_enc_pm only operate for the clocks,
rename it from the _pm to _clk.
No functional change.
CC: Tiffany Lin <tiffany.lin@xxxxxxxxxxxx>
CC: Irui Wang <irui.wang@xxxxxxxxxxxx>
Signed-off-by: Yong Wu <yong.wu@xxxxxxxxxxxx>