(struct loc_Thread_t): Rename struct loc_Thread_t to struct loc_Thread

as the struct loc_Thread_t is not a typedef.  No functional changes.

include/empthread.h

@@ -110,7 +110,7 @@ typedef struct empth_rwlock_t empth_rwlock_t;
 #define EMPTH_PRINT       0x1
 #define EMPTH_STACKCHECK  0x2
 
-typedef struct loc_Thread_t empth_t;
+typedef struct loc_Thread empth_t;
 typedef struct loc_Sem_t empth_sem_t;
 typedef struct loc_RWLock_t empth_rwlock_t;