hlte: fix hlte bluetooth crash when using google glass on  bluetooth data conn.

* keep bluesleep tx timeout to 3 second

Change-Id: Iad8e3316b648ff8b0b9178de636edc86f60c07ce
(cherry picked from commit a3ae932c5b6b7f857dd016fd0d0bd84cbef63d4b)
(cherry picked from commit 69a908750dd3071823a25828d778b6677f4b2619)