XDU_Contactless-distribution-robot fix compiler error

Author: hengyang2020

arc_design_contest/2020/XDU_Contactless-distribution-robot/src/dw_uart_obj.c

@@ -340,4 +340,4 @@ void dw_uart_all_install(void)
 	dw_uart_2_install();
 #endif
 }
-/** @} end of group BOARD_EMSK_DRV_DW_UART_OBJ */
+/** @} end of group BOARD_EMSK_DRV_DW_UART_OBJ */

arc_design_contest/2020/XDU_Contactless-distribution-robot/src/sim900.h

@@ -6,4 +6,4 @@
 void sim900_init(void);
 void call(uint8_t *pho);
 uint8_t *send(uint8_t *phoneNum);
-#endif 
+#endif 

arc_design_contest/2020/XDU_Contactless-distribution-robot/src/sr501.c

@@ -20,4 +20,4 @@ int HC_SR501_Status(void)
 	else{
 		return 0;
     }	
-}
+}