Lpbin : Add buffer query
Lpbin : Add buffer query

Change-Id: I1c68f6e1102ee4e8f6209ad227ab112c26ec1c8a
Reviewed-on: https://gpro.palm.com/14397
Tested-by: Meeshel Choi <6ccccf7ac27815d33869c999fdd843f2032e6a51@lge.com>
Reviewed-by: Wonchul Lee <9841bdbec9dbb2acc2dcaaa1dab0491399f0e464@lge.com>
Reviewed-by: WonHo Chun <0776ca6adb6a1e1d566ae6677b1353099e2d7f0f@lge.com>

justinjoy/gst-plugins-lp,justinjoy/gst-plugins-lp