Bluetooth: Fix the issue of certain files didn't send by bluetooth

DUT didn't send APK files or files whose format were not supported.
DUT didn't send several MP3 files by one time. These caused by the
bluetooth file transfer limit.

Add file type for bluetooth.

CRs-Fixed: 591288

Change-Id: Iaa7443dafa724a7c34597bd14bd160528a05fd06