Add missing != operator, fixing compilation issue with Visual Studio 17.6 together with /std:c++latest (#17860)

src/inference/include/ie/ie_precision.hpp

@@ -164,6 +164,15 @@ public:
                areSameStrings(precisionInfo.name, p.precisionInfo.name);
     }
 
+    /**
+     * @brief Inequality operator with Precision object
+     * @param p A value of Precision to compare with
+     * @return `true` if values represent different precisions, `false` otherwise
+     */
+    bool operator!=(const Precision& p) const noexcept {
+        return !(*this == p);
+    }
+
     /**
      * @brief Equality operator with ePrecision enum value
      * @param p A value of ePrecision to compare with