meta-ibm: Add license information

When meta-ibm was split out as a subtree from openbmc the license
information was not copied to the new repository.

License of the metadata and code remains unchanged - this is only a
documentation update.

Change-Id: I913d69ad517762a35756ff33d932699a6eccea3d
Fixes: 194ff4f1f5d44b12e9cb06ddafa6adb20174a13c
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
3 files changed