uboot-phytec

arm: m53evk: Fix RTC bus number

A previous update to the I2C stack introduced a typo in the
configuration option. Fix the typo and therefore allow the
RTC to work correctly with the 'date' command again.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>