freedreno: Add INDIRECT_COUNT CP_DRAW_INDIRECT_MULTI variants

These have an indirect count which is loaded from an iova, and the
minimum is taken between the indirect and direct counts. Note, I also
had to fix gen_header.py to deal with the extra-long names we get.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6007>
2 files changed