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>

src/broadcom/qpu/qpu_instr.h

@@ -295,7 +295,10 @@ enum v3d_qpu_mux {
 };
 
 struct v3d_qpu_input {
-        enum v3d_qpu_mux mux;
+        union {
+                enum v3d_qpu_mux mux; /* V3D 4.x */
+                uint8_t raddr; /* V3D 7.x */
+        };
         enum v3d_qpu_input_unpack unpack;
 };
 
@@ -385,8 +388,8 @@ struct v3d_qpu_instr {
         struct v3d_qpu_sig sig;
         uint8_t sig_addr;
         bool sig_magic; /* If the signal writes to a magic address */
-        uint8_t raddr_a;
-        uint8_t raddr_b;
+        uint8_t raddr_a; /* V3D 4.x */
+        uint8_t raddr_b; /* V3D 4.x*/
         struct v3d_qpu_flags flags;
 
         union {