i2c:gpio:s5p: Enable I2C GPIO on the GONI target

This patch enables the software I2C for GONI reference target.

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Cc: Heiko Schocher <hs@denx.de>

include/configs/s5p_goni.h

@@ -220,4 +220,16 @@
 
 #define CONFIG_SYS_INIT_SP_ADDR	(CONFIG_SYS_LOAD_ADDR - 0x1000000)
 
+#include <asm/arch/gpio.h>
+/*
+ * I2C Settings
+ */
+#define CONFIG_SOFT_I2C_GPIO_SCL s5pc110_gpio_get_nr(j4, 3)
+#define CONFIG_SOFT_I2C_GPIO_SDA s5pc110_gpio_get_nr(j4, 0)
+
+#define CONFIG_SOFT_I2C	1
+#define CONFIG_SYS_I2C_SPEED	50000
+#define CONFIG_I2C_MULTI_BUS
+#define CONFIG_SYS_MAX_I2C_BUS	7
+
 #endif	/* __CONFIG_H */