radv: fix re-emitting vertex user SGPRs when binding a graphics pipeline

radv: fix re-emitting vertex user SGPRs when binding a graphics pipeline

The base SGPR and the number of SGPRs can be equal but it was incorrect
because one VS can have draw_id and one can have base_instance. Fix
this by invalidating the vertex user SGPRs unconditionally.

Though they should also be invalidated after executing secondaries,
otherwise nothing is invalidated if the same pipeline is bind to the
primary again.

This fixes dEQP-VK.dynamic_rendering.primary_cmd_buff.random.seed*.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21652>