wltests: Fix flashing for hikeys 960/620
Created by: valschneider
A typo was introduced in d32f7592, which would prevent the flashing from happening, but the rest of wltest would still run. As such we'd end up comparing the exact same kernels.
Created by: valschneider
A typo was introduced in d32f7592, which would prevent the flashing from happening, but the rest of wltest would still run. As such we'd end up comparing the exact same kernels.