midbox-os : Add function to check if remote host port is open/not.
midbox-os : Add function to check if remote host port is open/not.

Added a linux library function to validate if a camera port(remote machine) is
open or not.
Useful to validate the connectivity before starting the streaming.

Signed-off-by: Sugesh Chandran <f7e7974487129857cab6f713d1ba07745529a3dd@intel.com>

sugchand/neoview-middle-box,sugchand/neoview-middle-box,sugchand/neoview-middle-box