ecore thread - fix warn - callback prototypes to match correct type

we pass void *'s to these cb's not int's or thread handled (whatever
typt they may be). so cast inside func not use wrong type.

src/lib/ecore/ecore_thread.c

@@ -214,8 +214,9 @@ _ecore_thread_data_free(void *data)
 }
 
 void
-_ecore_thread_join(PH(thread))
+_ecore_thread_join(void *data)
 {
+   PH(thread) = (uintptr_t)data;
    DBG("joining thread=%" PRIu64, (uint64_t)thread);
    PHJ(thread);
 }