Fix: U-Boot env is counted when calculating partition distribution.
Fix: U-Boot env is counted when calculating partition distribution.

Signed-off-by: Kristian Amlie <505e66ae45028a0596c853559221f0b72c1cee21@mender.io>

bboozzoo/meta-mender,bboozzoo/meta-mender,bboozzoo/meta-mender,bboozzoo/meta-mender