OPP: Notify NFC of that the transfer still alive per a certain period

Nfc Handover initiated transfer with large size file fails
because NFC cannot receive a notification within its timeout period.

In order to avoid this issue, update the transfer status
per a certain period to notify NFC of that the transfer is still alive.

Test: Send/Receive a large size file by AndroidBeam
Fixes: 64380121
Change-Id: I99530ce0fbcbacfcb8d178a285fbe6a49df954c1