si_check_render_feedback only relied on si_images::enabled_mask and
si_samplers::enabled_mask to determine if a texture was being used
both as input and output.
Given that some samplers/images can be considered active (so accounted
for by enabled_mask) but not used by the current shader this could
lead to false-positive.
This commit fixes this by and-ing the above mask with the information
from shader_info for each active shader.
Reviewed-by: Zoltán Böszörményi <zboszor@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Cc: mesa-stable
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/4227
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8869>
