Convert CONFIG_SYS_I2C_INIT_BOARD to Kconfig

This converts the following to Kconfig:
   CONFIG_SYS_I2C_INIT_BOARD

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/board/keymile/Kconfig b/board/keymile/Kconfig
index 9f78443..b8f0578 100644
--- a/board/keymile/Kconfig
+++ b/board/keymile/Kconfig
@@ -11,6 +11,9 @@
 
 menu "KM Board Setup"
 
+config SYS_I2C_INIT_BOARD
+	def_bool y if ARM
+
 config HUSH_INIT_VAR
 	def_bool y
 
diff --git a/board/samsung/common/board.c b/board/samsung/common/board.c
index 49d4024..943b498 100644
--- a/board/samsung/common/board.c
+++ b/board/samsung/common/board.c
@@ -176,10 +176,6 @@
 		return err;
 	}
 
-#ifdef CONFIG_SYS_I2C_INIT_BOARD
-	board_i2c_init(gd->fdt_blob);
-#endif
-
 	return exynos_early_init_f();
 }
 #endif
diff --git a/board/samsung/goni/goni.c b/board/samsung/goni/goni.c
index ba25ba2..535f8e1 100644
--- a/board/samsung/goni/goni.c
+++ b/board/samsung/goni/goni.c
@@ -33,16 +33,6 @@
 	return 0;
 }
 
-#ifdef CONFIG_SYS_I2C_INIT_BOARD
-void i2c_init_board(void)
-{
-	gpio_request(S5PC110_GPIO_J43, "i2c_clk");
-	gpio_request(S5PC110_GPIO_J40, "i2c_data");
-	gpio_direction_output(S5PC110_GPIO_J43, 1);
-	gpio_direction_output(S5PC110_GPIO_J40, 1);
-}
-#endif
-
 int dram_init(void)
 {
 	gd->ram_size = PHYS_SDRAM_1_SIZE + PHYS_SDRAM_2_SIZE +