configs: trats: enable the CONFIG_DM_I2C_GPIO

Enable the CONFIG_DM_I2C_GPIO for using i2c gpio
Signed-off-by: NJaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>
Signed-off-by: NMinkyu Kang <mk7.kang@samsung.com>

configs/trats_defconfig

@@ -34,6 +34,7 @@ CONFIG_CMD_FS_GENERIC=y
 CONFIG_ISO_PARTITION=y
 CONFIG_OF_CONTROL=y
 CONFIG_DFU_MMC=y
+CONFIG_DM_I2C_GPIO=y
 CONFIG_MMC_DW=y
 CONFIG_MMC_SDHCI=y
 CONFIG_MMC_SDHCI_SDMA=y