Unable to load kernel modules after r320324 -> r320353: "depends on kernel - not available or version mismatch"

[Konstantin Belousov]

On Mon, Jun 26, 2017 at 04:54:36AM -0700, David Wolfskill wrote:
> KLD geom_eli.ko: depends on kernel - not available or version mismatch
> linker_load_file: /boot/kernel/geom_eli.ko - unsupported file type
> swapon: /dev/ada0s4b.eli: Invalid parameters

Again remove all kernel build files and try fresh build.