u-boot/bohr: fix u-boot version typo
u-boot/bohr: fix u-boot version typo

Prepend the leading "v" in front of u-boot version string for bohr.

Signed-off-by: Jens Rehsack <69d49c504a9219a55b8be0f905e8fe3c32ffb57f@netbsd.org>

rdm-dev/meta-jens,tobw/meta-jens,rdm-dev/meta-jens,tobw/meta-jens,rdm-dev/meta-jens,tobw/meta-jens,rdm-dev/meta-jens,tobw/meta-jens