Bluetooth: Add Get/Set socket option to the Blueooth Socket

Added Get/Set socket option for the Bluetooth socket.These APIs
will be called from the frameworks.

Change-Id: I5ceef23d49e382089f479e8d618eec1dbc6ed5fb
Merge "Bluetooth: Add Get/Set socket option to the Blueooth Socket"
Merge branch 'jb_mr2' of git://codeaurora.org/platform/packages/apps/Bluetooth into cm-10.2
Merge branch 'cm-10.2' of https://github.com/CyanogenMod/android_packages_apps_Bluetooth into jb4.3