drm/amd/display: Include virtual signal to set k1 and k2 values

drm/amd/display: Include virtual signal to set k1 and k2 values

[ Upstream commit 368307cef69ccd9bf5511f25e58e3a103be169fb ]

Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Eric Bernstein <eric.bernstein@amd.com>
Tested-by: Mark Broadworth <mark.broadworth@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Stable-dep-of: 709671ffb15d ("drm/amd/display: Remove OTG DIV register write for Virtual signals.")
Signed-off-by: Sasha Levin <sashal@kernel.org>