board: tbs2910: Convert i2c and rtc to driver model

So we don't need to duplicate settings from the device tree in the board file.

Signed-off-by: Soeren Moch <smoch@web.de>
diff --git a/configs/tbs2910_defconfig b/configs/tbs2910_defconfig
index 395275c..153f61d 100644
--- a/configs/tbs2910_defconfig
+++ b/configs/tbs2910_defconfig
@@ -28,7 +28,6 @@
 CONFIG_CMD_MII=y
 CONFIG_CMD_PING=y
 CONFIG_CMD_CACHE=y
-CONFIG_CMD_DATE=y
 CONFIG_CMD_TIME=y
 CONFIG_CMD_EXT2=y
 CONFIG_CMD_EXT4=y
@@ -43,6 +42,8 @@
 CONFIG_DM=y
 CONFIG_DWC_AHSATA=y
 CONFIG_DM_GPIO=y
+CONFIG_DM_I2C=y
+CONFIG_SYS_I2C_MXC=y
 CONFIG_DM_KEYBOARD=y
 CONFIG_FSL_ESDHC=y
 CONFIG_PHYLIB=y
@@ -50,6 +51,8 @@
 CONFIG_PCI=y
 CONFIG_PINCTRL=y
 CONFIG_PINCTRL_IMX6=y
+CONFIG_DM_RTC=y
+CONFIG_RTC_DS1307=y
 CONFIG_DM_THERMAL=y
 CONFIG_USB=y
 CONFIG_DM_USB=y
@@ -62,5 +65,6 @@
 CONFIG_USB_GADGET_PRODUCT_NUM=0xa4a5
 CONFIG_CI_UDC=y
 CONFIG_USB_GADGET_DOWNLOAD=y
+CONFIG_I2C_EDID=y
 CONFIG_VIDEO=y
 # CONFIG_EFI_LOADER is not set