tu: Lazily init VSC to fix dynamic rendering in secondary cmdbufs
Dynamic renderpasses need vsc_prim_strm_pitch
, vsc_draw_strm_pitch
values, and a correct BO. The easiest way to solve this is to
lazily init VSC when it is needed, and not at every cmdbuf
initialization.
Fixes CTS tests (when running with TU_DEBUG=gmem,forcebin
):
dEQP-VK.draw.dynamic_rendering.complete_secondary_cmd_buff.*