newt: drop bits merged upstream

Signed-off-by: Christopher Larson <kergoth@gmail.com>
libdrm: drop bits merged upstream

Signed-off-by: Christopher Larson <kergoth@gmail.com>
xz: drop bits merged upstream

Signed-off-by: Christopher Larson <kergoth@gmail.com>
Split up meta-mentor into smaller layers

- meta-mel: The Mentor Embedded Linux distribution layer
- meta-mel-support: Support files for MEL
- meta-mentor-staging: Our staging area for bits which belong upstream

JIRA: SB-1798

Signed-off-by: Christopher Larson <kergoth@gmail.com>
mel.conf: drop no longer necessary bits

Signed-off-by: Christopher Larson <kergoth@gmail.com>
Merge pull request #76 from kergoth/layer-split

Split up meta-mentor into smaller layers