rockchip: firefly-px30: Fix the MACRO for CONFIG_DEBUG_UART2_CHANNEL

The Macro has update without update the defconfig, update the defconfig
to make Mcaro correct.

Fixes: ec4fafdf1f ("rockchip: px30: Rename CONFIG_DEBUG_UART2_CHANNEL to...")
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
1 file changed