fix mpt failed case

Author: zhaixuejun1993

ggml/src/ggml-openvino/ggml-openvino.cpp

@@ -932,6 +932,15 @@ static bool is_op_unsupported_case(const ggml_tensor * op) {
         }
         break;
     }
+    case GGML_OP_DIV: {
+        // The GPU plugin can fuse broadcast DIV into the preceding FFN GEMM path
+        // and produce infs for per-channel scale vectors. Keep those DIVs on CPU
+        // until the fused GPU kernel is reliable. (falied case llama-arch-test mpt)
+        if (op->src[1]->ne[0] == 1 && op->src[1]->ne[1] == 1 && op->src[1]->ne[2] == 1 && op->src[1]->ne[3] == 384) {
+            return true;
+        }
+        break;
+    }
     case GGML_OP_SUM_ROWS: {
         // if the input is PERMUTE skip
         if (op->src[0]->op == GGML_OP_PERMUTE) {