lib/oe/lsb: attempt to ensure consistent distro id regardless of source
The LSB Distributor ID and os-release NAME differ for most of the
distributions tested by the Yocto Project (CentOS, Debian, Fedora,
openSUSE and Ubuntu) however for all but openSUSE the os-release ID
matches the LSB Distributor ID when both are lowered before
comparison.
Therefore, in order to improve the consistency of identification of
a distribution, switch to using the os-release ID and converting
the ID value to lowercase.
Table showing comparison of LSB Distributor ID to os-release fields NAME
and ID for current Yocto Project supported host distributions:
