tests/intel/gem_spin_batch: Skip some test on MTL

We do GGTT update on MTL using bcs engine, blocking that would
fail the test so skip such subtests on bcs engine for MTL.

Signed-off-by: Nirmoy Das <nirmoy.das@intel.com>
Reviewed-by: Kamil Konieczny <kamil.konieczny@linux.intel.com>

tests/intel/gem_spin_batch.c

@@ -227,6 +227,9 @@ static void spin_all(int i915, const intel_ctx_t *ctx, unsigned int flags)
 		if (!gem_class_can_store_dword(i915, e->class))
 			continue;
 
+		if (gem_engine_can_block_ggtt_binder(i915, e))
+			continue;
+
 		if (flags & PARALLEL_SPIN_NEW_CTX)
 			ctx = intel_ctx_create(i915, &cfg);
 		ahnd = get_reloc_ahnd(i915, ctx->id);