glsl_to_tgsi: Set TGSI_PROPERTY_FS_BLEND_EQUATION_ADVANCED
In virgl, when fbfetch extention is not available but blend_equation_advanced is,
we didn't call lower_blend_equation_advanced. So we need to pass the blend value
to the host in order to recreate the shader correctly.
Signed-off-by: Elie Tournier <elie.tournier@collabora.com>
Reviewed-by: Gert Wollny <gert.wollny@collabora.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5516>