BT MAP: fix problem with fetching CDMA messages

A bug in Java makes the Long.parse() function throw and exception when message
handles start to become negative (which happens for CDMA SMS messages).
Fix simply shifts the handle masks on byte down in order to get around
the bug.

Bug: 17627572
Change-Id: Ie41aef589dc9d3ecb8bc7167472218e57a52fa33
1 file changed