drm/amd/display: 3.2.300

drm/amd/display: 3.2.300

- Add HDMI DSC native YCbCr422 support
- Add fullscreen only sharpening policy
- Restructure dpia link training
- Disable SYMCLK32_LE root clock gating
- Clean up dsc blocks in accelerated mode
- Block dynamic IPS2 on DCN35 for incompatible FW versions
- Add debug options to change sharpen policies
- Block timing sync for different output formats in pmo
- Enable DML2 override_det_buffer_size_kbytes
- Add dmub hpd sense callback
- Emulate Display Hotplug Hang
- Implement new DPCD register handling
- Use SDR white level to calculate matrix coefficients
- Round calculated vtotal

Reviewed-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>