[bsp/gd32] add gd32h759i-eval bsp add fix drv_usart.c (#10623)

* [bsp/gd32] add gd32h759i-eval bsp

* [fix] Update gd32h759i-start config

* 添加BSP CI看护

* Apply suggestions from code review

Co-authored-by: Copilot <[email protected]>

* Update bsp/gd32/arm/libraries/gd32_drivers/drv_usart.c

Co-authored-by: Copilot <[email protected]>

* Update bsp/gd32/arm/libraries/gd32_drivers/drv_usart.c

Co-authored-by: Copilot <[email protected]>

* add .gitignore

---------

Co-authored-by: Copilot <[email protected]>

Author: Yaochenger

.github/ALL_BSP_COMPILE.json

@@ -304,6 +304,7 @@
         "gd32/arm/gd32450z-eval",
         "gd32/arm/gd32470z-lckfb",
         "gd32/arm/gd32h759i-start",
+        "gd32/arm/gd32h759i-eval",
         "gd32/arm/gd32e503v-eval",
         "gd32/arm/gd32527I-eval",
         "gd32/arm/gd32e230-lckfb",