[bsp][cv1800b] Add gpio driver for cv1800b (#8158)

bsp/cv1800b/drivers/drv_gpio.h

@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2006-2023, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2023/10/19     xiunian      first version
+ */
+#ifndef DRV_GPIO_H__
+#define DRV_GPIO_H__
+
+int rt_hw_gpio_init(void);
+
+#endif