drm/amd/display: Pass pwrseq inst for backlight and ABM

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Subject: drm/amd/display: Pass pwrseq inst for backlight and ABM
From: Alex Deucher <alexdeucher@xxxxxxxxx>
Date: Wed, 17 Jan 2024 11:16:27 -0500
Cc: "Siqueira, Rodrigo" <Rodrigo.Siqueira@xxxxxxx>

Hi Greg, Sasha,

Please cherry pick upstream commit b17ef04bf3a4 ("drm/amd/display:
Pass pwrseq inst for backlight and ABM") to stable kernel 6.6.x and
newer.

This fixes broken backlight adjustment on some AMD platforms with eDP panels.

Thanks,

Alex

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