broadcom/qpu: add raddr on v3d_qpu_input

broadcom/qpu: add raddr on v3d_qpu_input

On V3D 7.x mux are not used, and raddr_a/b/c/d are used instead

This is not perfect, as for v71, the raddr_a/b defined at qpu_instr
became superfluous. But the alternative would be to define two
different structs, or even having them defined based on version
ifdefs, so this is a reasonable compromise.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25450>