Bluetooth: L2CAP: Add RTX timer for 'get info' command
Bluetooth: L2CAP: Add RTX timer for 'get info' command

Starts the timer when 'get info' command was issued followed by
connection is made and stops it when gets back the response with no
timeout in the middle. Such pending timer need to be cancelled in any
case when ACL connection is dropped during pending command in question.
In a case the timeout gets fired skip the channel cleanup since
'get info' command has BR/EDR signal channel context and the one needs
to be operational when transport connection is alive.

Change-Id: I319becf3330f9be5633c15e5b39d77a619495494
Signed-off-by: Arkadiusz Lichwa <a8f3d827a064762faaf15c916aaf7025632f7d7f@tieto.com>

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