drm: New function to get luminance range based on static hdr metadata

Split luminance min/max calculation using static hdr metadata from
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c:update_connector_ext_caps
into drm/drm_edid.c and use it during edid parsing. Calculated range is
stored into connector->display_info->luminance_range.

Add new data structure (drm_luminance_range_inf) to store luminance range
calculated using data from EDID's static hdr metadata block. Add this new
struct as a part of drm_display_info struct.

v3: Squashed adding drm_luminance_range_info patch here
v2: Calculate range during edid parsing

Cc: Roman Li <[email protected]>
Cc: Rodrigo Siqueira <[email protected]>
Cc: Harry Wentland <[email protected]>
Cc: Lyude Paul <[email protected]>
Cc: Mika Kahola <[email protected]>
Cc: Jani Nikula <[email protected]>
Cc: Manasi Navare <[email protected]>
Signed-off-by: Jouni Högander <[email protected]>
Signed-off-by: Jani Nikula <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

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