vboot-utils: add missing dependency on host-util-linux

vboot-utils needs uuid.h and libuuid for the cgpt tool, so we need to
depend on host-util-linux.

Fixes:

  http://autobuild.buildroot.org/results/ee1/ee18202cb6d7751178617e6a3d0bc97e65318aa9/



Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>