OPNFLWPLUG-1008 : Make OpenflowPluginDiagStatusProvider ip address confiugrable
Currently if user checks diagstatus:showsvcstatus, then port status will
be checked for localhost. If user starts IP in different host and checks
for diagstatus:showsvcstatus, then it reads IP address from switch
connection configuration xml file and checks port status for that IP
address. If no IP is specified in configuration file, then by default
localhost will be considered for port status check.
Change-Id: I34c6d6d429ccffa56452dd0209673229f1bb3585
Signed-off-by: Somashekhar Javalagi <somashekhar.manohara.javalagi@ericsson.com>