fix zigbee compile problem when separate compiling

applications/connection_demo/zigbee_demo/zigbee_receive_demo.c

@@ -22,7 +22,8 @@
 #include <string.h>
 #include <xs_klist.h>
 #include <xs_adapter_manager.h>
-#include "../applications/user_api/switch_api/user_api.h"
+#include <user_api.h>
+#include <string.h>
 static int re_sem;
 
 static int buff_sem;
@@ -77,9 +78,10 @@ void ZigbeeReceiveDemo(int argc, char *argv[])
     
     
 }
+#ifndef SEPARATE_COMPILE
 SHELL_EXPORT_CMD(SHELL_CMD_PERMISSION(0)|SHELL_CMD_TYPE(SHELL_TYPE_CMD_MAIN),
 ZigbeeReceiveDemo, ZigbeeReceiveDemo,  zigbee receive function );
-
+#endif