Bug 1764 - fixed features configuration for os-switch-config-pusher

(cherry picked from commit 71de816cbc5a5906bae892f852af31c7d0d996b5)
Change-Id: Iaa1d0af3b2b8d5f5e9ec3ea8ef535ce084922155
Signed-off-by: Martin Bobak <mbobak@cisco.com>
Signed-off-by: Michal Rehak <mirehak@cisco.com>