[Docs](mlu-ops): update toolkit 4.6.1 (#1303)

Author: duzekunKTH

build.property

@@ -1,7 +1,7 @@
 {
   "version": "1.10.0-1",
   "python": "3.6.0",
-  "build_requires": {"cntoolkit": ["release","4.5.3-1"],
+  "build_requires": {"cntoolkit": ["release","4.6.1-1"],
                      "cnnl":["release","2.2.1-1"],
                      "driver": "6.0.3",
                      "eigen3": "3.4.0",

docs/release_notes/mlu_ops.rst

@@ -20,7 +20,7 @@ Cambricon MLU-OPS具有以下特点：
    +-----------------------------+-----------------------------+
    | Cambricon MLU-OPS 版本      | 依赖组件版本                |
    +=============================+=============================+
-   | Cambricon MLU-OPS v1.10.z   | CNToolkit >= v4.5.3         |
+   | Cambricon MLU-OPS v1.10.z   | CNToolkit >= v4.6.1         |
    |                             +-----------------------------+
    |                             | CNNL >= v2.2.1              |
    +-----------------------------+-----------------------------+
@@ -109,7 +109,7 @@ v1.10.0
 特性变更
 ~~~~~~~~~~~~~~~~~~~~
 
-- 无。
+- 升级CNToolkit版本至v4.6.1。
 
 已修复问题
 ~~~~~~~~~~~~~~~~~~~~