turnip: move some logic out of create_render_pass_common

CreateRenderPass2 is the common path now, it doesn't make sense to have a
create_render_pass_common. Rename it to tu_render_pass_gmem_config and
move logic not related to gmem config out of it.

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5451>
1 file changed