blackfin: i2c-lcd: change default clock rate

Change default clock rate of GPIO based I2C operation for BF533
and BF561 to bring up the I2C interface LCD display
Signed-off-by: NAaron Wu <Aaron.Wu@analog.com>
Signed-off-by: NBob Liu <lliubbo@gmail.com>

arch/blackfin/mach-bf533/boards/stamp.c

@@ -472,7 +472,7 @@ static struct i2c_gpio_platform_data i2c_gpio_data = {
 	.scl_pin		= GPIO_PF3,
 	.sda_is_open_drain	= 0,
 	.scl_is_open_drain	= 0,
-	.udelay			= 40,
+	.udelay			= 10,
 };
 
 static struct platform_device i2c_gpio_device = {

arch/blackfin/mach-bf561/boards/ezkit.c

@@ -383,7 +383,7 @@ static struct i2c_gpio_platform_data i2c_gpio_data = {
 	.scl_pin		= GPIO_PF0,
 	.sda_is_open_drain	= 0,
 	.scl_is_open_drain	= 0,
-	.udelay			= 40,
+	.udelay			= 10,
 };
 
 static struct platform_device i2c_gpio_device = {