feat(cbuild): 更新GD32C10x_DFP包到1.5.0版本并修复多个设备驱动文件

更新了项目中使用的GD32C10x_DFP包从1.0.1版本升级到1.5.0版本，
同时更新了多个RTE设备驱动文件以匹配新版本固件，包括ADC、BKP、CAN、CRC、CTC、DAC、DBG、DMA、EXMC、EXTI、FMC等外设驱动。修复了CAN驱动中的消息传输逻辑，改进了错误处理机制，并统一了标志位获取函数的返回值处理方式。

Robot_V2/RTE/Device/GD32C103CB/gd32c10x_usart.c

@@ -2,11 +2,11 @@
     \file    gd32c10x_usart.c
     \brief   USART driver
     
-    \version 2025-08-07, V1.6.0, firmware for GD32C10x
+    \version 2026-01-30, V1.7.0, firmware for GD32C10x
 */
 
 /*
-    Copyright (c) 2025, GigaDevice Semiconductor Inc.
+    Copyright (c) 2026, GigaDevice Semiconductor Inc.
 
     Redistribution and use in source and binary forms, with or without modification, 
 are permitted provided that the following conditions are met:
@@ -757,11 +757,14 @@ void usart_hardware_flow_coherence_config(uint32_t usart_periph, uint32_t hcm)
 */
 FlagStatus usart_flag_get(uint32_t usart_periph, usart_flag_enum flag)
 {
+    FlagStatus ret;
+
     if(RESET != (USART_REG_VAL(usart_periph, flag) & BIT(USART_BIT_POS(flag)))) {
-        return SET;
+        ret = SET;
     } else {
-        return RESET;
+        ret = RESET;
     }
+    return ret;
 }
 
 /*!
@@ -858,16 +861,18 @@ void usart_interrupt_disable(uint32_t usart_periph, usart_interrupt_enum interru
 FlagStatus usart_interrupt_flag_get(uint32_t usart_periph, usart_interrupt_flag_enum int_flag)
 {
     uint32_t intenable = 0U, flagstatus = 0U;
+    FlagStatus ret;
     /* get the interrupt enable bit status */
     intenable = (USART_REG_VAL(usart_periph, int_flag) & BIT(USART_BIT_POS(int_flag)));
     /* get the corresponding flag bit status */
     flagstatus = (USART_REG_VAL2(usart_periph, int_flag) & BIT(USART_BIT_POS2(int_flag)));
 
     if((0U != flagstatus) && (0U != intenable)) {
-        return SET;
+        ret = SET;
     } else {
-        return RESET;
+        ret = RESET;
     }
+    return ret;
 }
 
 /*!