fdcaps: Add caps information for DTS M6
fdcaps: Add caps information for DTS M6

add caps information for DTS M6 such as "dtsh", 
"dtsl", "dtse".
This following patch supports DTS M6 certification.

Change-Id: If2d8b8dffe4050a5d5d08ed3ed4628948309c436
Reviewed-on: https://gpro.palm.com/47016
Reviewed-by: WonHo Chun <0776ca6adb6a1e1d566ae6677b1353099e2d7f0f@lge.com>
Tested-by: Yongjin Ohn <a3a2ce5ece06e999180439ea22acd8fd136a17cd@lge.com>
Reviewed-by: Wonchul Lee <9841bdbec9dbb2acc2dcaaa1dab0491399f0e464@lge.com>

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