[spi] soft_spi_pin_init loop variable is initialized to 0

The loop variable in the function 'drv_soft_spi:xx_pin_init()' is initialized to 0.

bsp/nxp/lpc/lpc55sxx/Libraries/drivers/drv_soft_spi.c

@@ -185,7 +185,7 @@ static void lpc_pin_init(void)
 {
     rt_size_t obj_num = sizeof(spi_obj) / sizeof(struct lpc_soft_spi);
 
-    for(rt_size_t i; i < obj_num; i++)
+    for(rt_size_t i = 0; i < obj_num; i++)
     {
         lpc_spi_gpio_init(&spi_obj[i]);
     }

bsp/raspberry-pico/drivers/drv_soft_spi.c

@@ -159,7 +159,7 @@ static void pico_pin_init(void)
 {
     rt_size_t obj_num = sizeof(spi_obj) / sizeof(struct pico_soft_spi);
 
-    for(rt_size_t i; i < obj_num; i++)
+    for(rt_size_t i = 0; i < obj_num; i++)
     {
         pico_spi_gpio_init(&spi_obj[i]);
     }

bsp/renesas/libraries/HAL_Drivers/drv_soft_spi.c

@@ -189,7 +189,7 @@ static void ra_pin_init(void)
 {
     rt_size_t obj_num = sizeof(spi_obj) / sizeof(struct ra_soft_spi);
 
-    for(rt_size_t i; i < obj_num; i++)
+    for(rt_size_t i = 0; i < obj_num; i++)
     {
         ra_spi_gpio_init(&spi_obj[i]);
     }

bsp/stm32/libraries/HAL_Drivers/drivers/drv_soft_spi.c

@@ -190,7 +190,7 @@ static void stm32_pin_init(void)
 {
     rt_size_t obj_num = sizeof(spi_obj) / sizeof(struct stm32_soft_spi);
 
-    for(rt_size_t i; i < obj_num; i++)
+    for(rt_size_t i = 0; i < obj_num; i++)
     {
         stm32_spi_gpio_init(&spi_obj[i]);
     }

bsp/stm32/stm32f407-rt-spark/applications/arduino_pinout/pins_arduino.c

@@ -44,8 +44,8 @@ const pin_map_t pin_map_table[]=
     {D20, GET_PIN(G, 0)},
     {D21, GET_PIN(A, 0)},
     {D22, GET_PIN(G, 5), "sspi1"},          /* SOFT-SPI-SCK */
-    {D23, GET_PIN(G, 3), "sspi1"},          /* SOFT-SPI-SCK */
-    {D24, GET_PIN(G, 1), "sspi1"},          /* SOFT-SPI-SCK */
+    {D23, GET_PIN(G, 3), "sspi1"},          /* SOFT-SPI-MISO */
+    {D24, GET_PIN(G, 1), "sspi1"},          /* SOFT-SPI-MOSI */
     {D25, GET_PIN(G, 7), "i2c4"},           /* I2C-SCL (Wire) */
     {D26, GET_PIN(D, 7), "i2c4"},           /* I2C-SDA (Wire) */
     {D27, GET_PIN(B, 6), "i2c5"},           /* I2C-SCL (Wire) */

bsp/wch/risc-v/Libraries/ch32_drivers/drv_soft_spi.c

@@ -193,7 +193,7 @@ static void ch32_pin_init(void)
 {
     rt_size_t obj_num = sizeof(spi_obj) / sizeof(struct ch32_soft_spi);
 
-    for(rt_size_t i; i < obj_num; i++)
+    for(rt_size_t i = 0; i < obj_num; i++)
     {
         ch32_spi_gpio_init(&spi_obj[i]);
     }