!132 fix: correct ECB in comment

Merge pull request !132 from kenneth/los_sem.c

kernel/src/los_sem.c

@@ -67,7 +67,7 @@ LITE_OS_SEC_TEXT_INIT UINT32 OsSemInit(VOID)
         return LOS_ERRNO_SEM_NO_MEMORY;
     }
 
-    /* Connect all the ECBs in a doubly linked list. */
+    /* Connect all the semaphore CBs in a doubly linked list. */
     for (index = 0; index < LOSCFG_BASE_IPC_SEM_LIMIT; index++) {
         semNode = ((LosSemCB *)g_allSem) + index;
         semNode->semID = index;
@@ -313,4 +313,3 @@ LITE_OS_SEC_TEXT UINT32 LOS_SemPost(UINT32 semHandle)
 }
 
 #endif /* (LOSCFG_BASE_IPC_SEM == 1) */
-