defconfig: am335x_boneblack_vboot: enable i2c driver model

Enable i2c driver model for am335x_boneblack_vboot as omap i2c
supports driver model. Also enable CONFIG_DM_I2C_COMPAT for
legacy drivers of i2c devices.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>

configs/am335x_boneblack_vboot_defconfig

@@ -49,3 +49,4 @@ CONFIG_USB_GADGET_DOWNLOAD=y
 CONFIG_G_DNL_MANUFACTURER="Texas Instruments"
 CONFIG_G_DNL_VENDOR_NUM=0x0451
 CONFIG_G_DNL_PRODUCT_NUM=0xd022
+CONFIG_DM_I2C=y

include/configs/ti_armv7_common.h

@@ -118,7 +118,15 @@
 
 /* I2C IP block */
 #define CONFIG_I2C
+#ifndef CONFIG_DM_I2C
 #define CONFIG_SYS_I2C
+#else
+/*
+ * Enable CONFIG_DM_I2C_COMPAT temporarily until all the i2c client
+ * devices are adopted to DM
+ */
+#define CONFIG_DM_I2C_COMPAT
+#endif
 
 /* MMC/SD IP block */
 #define CONFIG_MMC