EXYNOS: Resolve the i2c compilation error

This patch resolves the below mentioned compilation error of i2c driver
for non-FDT case

Compilation error:
s3c24x0_i2c.c: In function 'board_i2c_init':
s3c24x0_i2c.c:544:18: error: 'CONFIG_MAX_I2C_NUM' undeclared (first use
in this function) s3c24x0_i2c.c:544:18: note: each undeclared
identifier is reported only once for each function it appears in
s3c24x0_i2c.c:545:3: warning: implicit declaration of function

Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com>
Signed-off-by: Amar <amarendra.xt@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
diff --git a/board/samsung/smdk5250/smdk5250.c b/board/samsung/smdk5250/smdk5250.c
index ae1f077..f1d3d97 100644
--- a/board/samsung/smdk5250/smdk5250.c
+++ b/board/samsung/smdk5250/smdk5250.c
@@ -332,6 +332,16 @@
 	return ret;
 }
 
+void board_i2c_init(const void *blob)
+{
+	int i;
+
+	for (i = 0; i < CONFIG_MAX_I2C_NUM; i++) {
+		exynos_pinmux_config((PERIPH_ID_I2C0 + i),
+				     PINMUX_FLAG_NONE);
+	}
+}
+
 #ifdef CONFIG_BOARD_EARLY_INIT_F
 int board_early_init_f(void)
 {