Enable configuring whether "set +x" is added to all shell tasks rather
than forcing it; this is enabled by setting BB_VERBOSE_LOGS to 1.
(Bitbake rev: 659411b6bb30e1a8355afc1c29b8170a8f2b55ac)
Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>