aspeed: Enable I2C in EVB defconfig

Enable I2C driver in ast2500 Eval Board defconfig.
Also enable i2c command.

Signed-off-by: Maxim Sloyko <maxims@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

configs/evb-ast2500_defconfig

@@ -18,3 +18,6 @@ CONFIG_TIMER=y
 CONFIG_WDT=y
 CONFIG_DM_RESET=y
 CONFIG_PINCTRL=y
+CONFIG_DM_I2C=y
+CONFIG_SYS_I2C_ASPEED=y
+CONFIG_CMD_I2C=y