apps/iperf: fix not displaying bandwidth in udp
apps/iperf: fix not displaying bandwidth in udp

This patch allows iperf to display bandwidth/transfer in udp rx.

Change-Id: I50378f7c6ae5da29cd5d82796b3e8ee25defba98
Signed-off-by: Byoungtae Cho <d399e7ab5fdc23c09a148b7028e772c5bd5c24c5@samsung.com>
Signed-off-by: EunBong Song <1a7e7e98e070490e67aa35ab67fbf9fdda8f48ac@samsung.com>

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