OPP: Handle Security Exception.

Use Case:
1. Pair remote with DUT.
2. Now go to G photos application to share images.
3. Select any image and try share.
4) Cancel operation (Decline Server side)
5) And try share again.

Failure:
"Unfortunately, Bluetooth share has stopped" error comes.

Root Cause:
For security reasons, the permissions are temporary, so once the client
app.s task stack is finished, the file is no longer accessible or some
content providers don't support the read permission.

Fix:
When tap the "try again" button on the send failed dialog, the
method "BluetoothOppSendFileInfo::generateFileInfo()" will be
call, there catching Security Exception and sending empty
BluetoohSendFileInfo.

Change-Id: I4520a91622c0532d7d0f8aeeb7ff76e9a3abe7a1