layers.conf: use upstream meta-smartphone repo

* we don't have any wp specific patches anymore

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
layers.txt: bump to latest revisions in master branches

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
bblayers.conf: Split meta-webos-ports layer to meta-luneos and meta-luneui

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Set BRANCH_COMMON correctly to unstable

Signed-off-by: Simon Busch <morphis@gravedo.de>