Msdkenc: fix for low power

• revert the low power breakage commit
• deprecate low-power property and introduce tune property to allow auto mode in MSDK.

it passed the pre-check https://github.com/intel-media-ci/gst-plugins-bad/pull/71

mentioned in merge request !1405 (merged)

LGTM. Thanks for fixing quickly!

added 6 commits

• ea19500a...395ecb3d - 4 commits from branch gstreamer:master
• 98a2b284 - Revert "msdkh265enc: let MSDK select the encoding mode by default"
• 76d40d00 - msdkenc: support tune property in msdkh264enc and msdkh265enc

Compare with previous version

assigned to @gstreamer-merge-bot

mentioned in commit haihao/gst-plugins-bad@3ecb2a82

mentioned in commit haihao/gst-plugins-bad@55f35903

added 2 commits

• 3ecb2a82 - Revert "msdkh265enc: let MSDK select the encoding mode by default"
• 55f35903 - msdkenc: support tune property in msdkh264enc and msdkh265enc

Compare with previous version

assigned to @haihao and unassigned @gstreamer-merge-bot

I couldn't merge this branch: CI failed!

assigned to @gstreamer-merge-bot and unassigned @haihao

merged

changed milestone to %1.17.90