Bug 7891: Place provided features to featuresBoot

Bug 7891: Place provided features to featuresBoot

Specifically, org.apache.sshd/sshd-core/0.14.0 is excluded,
thus "ssh" feature has to be always installed.

Without this, distribution4-check with odl-netconf-mdsal
in integration fails at installing boot features, because
org.opendaylight.netconf.netty-util depends on sshd-core bundle,
which is only activated by "ssh" feature
(as any ODL feature drops that dependency,
because of exclusions in feature parents).

Change-Id: Ic1d3b19981fccca9c320a5079aaf9e2eadf09397
Signed-off-by: Vratko Polak <vrpolak@cisco.com>