Convert CONFIG_I2C_EDID et al to Kconfig

This converts the following to Kconfig:
   CONFIG_I2C_EDID
   CONFIG_I2C_EEPROM

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/sandbox_flattree_defconfig b/configs/sandbox_flattree_defconfig
index deced18..7cc76bf 100644
--- a/configs/sandbox_flattree_defconfig
+++ b/configs/sandbox_flattree_defconfig
@@ -193,6 +193,7 @@
 CONFIG_CONSOLE_ROTATION=y
 CONFIG_CONSOLE_TRUETYPE=y
 CONFIG_CONSOLE_TRUETYPE_CANTORAONE=y
+CONFIG_I2C_EDID=y
 CONFIG_VIDEO_SANDBOX_SDL=y
 CONFIG_OSD=y
 CONFIG_SANDBOX_OSD=y