Cli: update 'keysequence' to make keyswithguardtime configurable (#815)

* Cli: update 'keysequence' to make keyswithguardtime configurable

include/openthread-types.h

@@ -514,7 +514,7 @@ enum
 
     OT_NET_ROLE               = 1 << 3,  ///< Device role (disabled, detached, child, router, leader) changed
     OT_NET_PARTITION_ID       = 1 << 4,  ///< Partition ID changed
-    OT_NET_KEY_SEQUENCE       = 1 << 5,  ///< Thread Key Sequence changed
+    OT_NET_KEY_SEQUENCE_COUNTER = 1 << 5,  ///< Thread Key Sequence changed
 
     OT_THREAD_CHILD_ADDED     = 1 << 6,  ///< Child was added
     OT_THREAD_CHILD_REMOVED   = 1 << 7,  ///< Child was removed

include/openthread.h

@@ -1283,6 +1283,28 @@ uint32_t otGetKeySequenceCounter(otInstance *aInstance);
  */
 void otSetKeySequenceCounter(otInstance *aInstance, uint32_t aKeySequenceCounter);
 
+/**
+ * Get the thrKeySwitchGuardTime
+ *
+ * @param[in]  aInstance A pointer to an OpenThread instance.
+ *
+ * @returns The thrKeySwitchGuardTime value (in hours).
+ *
+ * @sa otSetKeySwitchGuardTime
+ */
+uint32_t otGetKeySwitchGuardTime(otInstance *aInstance);
+
+/**
+ * Set the thrKeySwitchGuardTime
+ *
+ * @param[in]  aInstance            A pointer to an OpenThread instance.
+ * @param[in]  aKeySwitchGuardTime  The thrKeySwitchGuardTime value (in hours).
+ *
+ * @sa otGetKeySwitchGuardTime
+ */
+void otSetKeySwitchGuardTime(otInstance *aInstance, uint32_t aKeySwitchGuardTime);
+
+
 /**
  * Get the NETWORK_ID_TIMEOUT parameter used in the Router role.
  *