intel/tools: Handle GT_MODE in the batch decoder

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9729>

src/intel/common/intel_decoder.h

@@ -240,6 +240,7 @@ struct intel_batch_decode_ctx {
    struct intel_spec *spec;
    enum intel_batch_decode_flags flags;
 
+   bool use_256B_binding_tables;
    uint64_t surface_base;
    uint64_t dynamic_base;
    uint64_t instruction_base;