ARM: rmobile: Replace SH I2C with IIC on Porter

Get rid of the SH I2C driver on Porter and enable the IIC driver
instead . The old SH I2C is completely broken on Porter anyway
and the DM/DT capable IIC driver allows access to the PMIC too.
Use the DM/DT capable driver instead.
Signed-off-by: NMarek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>

configs/porter_defconfig

@@ -50,6 +50,8 @@ CONFIG_SPL_CLK=y
 CONFIG_CLK_RENESAS=y
 CONFIG_DM_GPIO=y
 CONFIG_RCAR_GPIO=y
+CONFIG_DM_I2C=y
+CONFIG_SYS_I2C_RCAR_IIC=y
 CONFIG_DM_MMC=y
 CONFIG_MMC_UNIPHIER=y
 CONFIG_SPI_FLASH=y

include/configs/porter.h

@@ -49,20 +49,6 @@
 
 #define CONFIG_SYS_TMU_CLK_DIV	4
 
-/* i2c */
-#define CONFIG_SYS_I2C
-#define CONFIG_SYS_I2C_SH
-#define CONFIG_SYS_I2C_SLAVE		0x7F
-#define CONFIG_SYS_I2C_SH_NUM_CONTROLLERS	3
-#define CONFIG_SYS_I2C_SH_SPEED0	400000
-#define CONFIG_SYS_I2C_SH_SPEED1	400000
-#define CONFIG_SYS_I2C_SH_SPEED2	400000
-#define CONFIG_SH_I2C_DATA_HIGH		4
-#define CONFIG_SH_I2C_DATA_LOW		5
-#define CONFIG_SH_I2C_CLOCK		10000000
-
-#define CONFIG_SYS_I2C_POWERIC_ADDR	0x58 /* da9063 */
-
 #define CONFIG_EXTRA_ENV_SETTINGS	\
 	"fdt_high=0xffffffff\0"		\
 	"initrd_high=0xffffffff\0"