Fix checkstyle warnings in netconf-netty-util

Change-Id: I123c7cbff15c1267a1bdb537e100c1bf2f9894d7
Signed-off-by: Marian Dubai <mdubai@cisco.com>
Fix checkstyle warnings in netconf-ssh.

Change-Id: I01cee96432edcf361b463f89c648823042165b9e
Signed-off-by: Marian Dubai <mdubai@cisco.com>