Convert CONFIG_CONS_INDEX to Kconfig
This converts the following to Kconfig:
CONFIG_CONS_INDEX
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/linkit-smart-7688_defconfig b/configs/linkit-smart-7688_defconfig
index 8ec6693..9115bb9 100644
--- a/configs/linkit-smart-7688_defconfig
+++ b/configs/linkit-smart-7688_defconfig
@@ -60,6 +60,8 @@
CONFIG_MT7628_ETH=y
CONFIG_PHY=y
CONFIG_MT76X8_USB_PHY=y
+CONFIG_SPECIFY_CONSOLE_INDEX=y
+CONFIG_CONS_INDEX=3
CONFIG_SPI=y
CONFIG_MT7621_SPI=y
CONFIG_USB=y