fix(bsp/gd32/arm): 修复gd32硬件i2c驱动

- 硬件i2c主机接收驱动采用方案B，但不支持接收小于3字节，现修复该问题
- 增加方案A。

Author: ShiHongChao

bsp/gd32/arm/gd32405rg/.config

@@ -1440,22 +1440,16 @@ CONFIG_BSP_USING_UART0=y
 # CONFIG_BSP_USING_UART3 is not set
 # CONFIG_BSP_USING_UART4 is not set
 # CONFIG_BSP_USING_UART5 is not set
+CONFIG_BSP_USING_HARD_I2C=y
+CONFIG_BSP_USING_RECEIVING_A=y
+# CONFIG_BSP_USING_RECEIVING_B is not set
+CONFIG_BSP_USING_HARD_I2C0=y
+# CONFIG_BSP_USING_HARD_I2C1 is not set
+# CONFIG_BSP_USING_HARD_I2C2 is not set
 # CONFIG_BSP_USING_SPI is not set
 # CONFIG_BSP_USING_ADC is not set
 # CONFIG_BSP_USING_HWTIMER is not set
-CONFIG_BSP_USING_PWM=y
-CONFIG_BSP_USING_PWM0=y
-CONFIG_BSP_USING_PWM1=y
-CONFIG_BSP_USING_PWM2=y
-CONFIG_BSP_USING_PWM3=y
-CONFIG_BSP_USING_PWM4=y
-CONFIG_BSP_USING_PWM7=y
-CONFIG_BSP_USING_PWM8=y
-CONFIG_BSP_USING_PWM9=y
-CONFIG_BSP_USING_PWM10=y
-CONFIG_BSP_USING_PWM11=y
-CONFIG_BSP_USING_PWM12=y
-CONFIG_BSP_USING_PWM13=y
+# CONFIG_BSP_USING_PWM is not set
 # CONFIG_BSP_USING_ONCHIP_RTC is not set
 # CONFIG_BSP_USING_WDT is not set
 # CONFIG_BSP_USING_SDIO is not set

bsp/gd32/arm/gd32405rg/board/Kconfig

@@ -232,6 +232,35 @@ menu "On-chip Peripheral Drivers"
                 default 32
         endif
 
+    menuconfig BSP_USING_HARD_I2C
+        bool "Enable I2C"
+        select RT_USING_I2C
+        default n
+        if BSP_USING_HARD_I2C
+            choice
+                prompt "Select I2C Receiving Scheme"
+                default BSP_USING_RECEIVING_A
+
+                config BSP_USING_RECEIVING_A
+                    bool "master receiving secheme A --- requires that the software be capable of responding quickly to the 12C event."
+
+                config BSP_USING_RECEIVING_B
+                    bool "master receiving secheme B --- don't requires that the software be capable of responding quickly to the 12C event."
+            endchoice
+
+            config BSP_USING_HARD_I2C0
+                bool "enable hard I2C0"
+                default n
+
+            config BSP_USING_HARD_I2C1
+                bool "enable hard I2C1"
+                default n
+
+            config BSP_USING_HARD_I2C2
+                bool "enable hard I2C2"
+                default n
+        endif
+   
     menuconfig BSP_USING_SPI
         bool "Enable SPI BUS"
         default n