GPU Calc: unit test cases for DURATION

AMLOEXT-111 BUG

Change-Id: I1d206b0eda0dca8254f0491399d0a4679eb39ef8
Signed-off-by: haochen <haochen@multicorewareinc.com>
Signed-off-by: I-Jui (Ray) Sung <ray@multicorewareinc.com>
GPU Calc: implemented DURATION

AMLOEXT-111 FIX

Change-Id: I114e5b20326657f7fd3e0de7162a8ae190059b2a
Signed-off-by: haochen <haochen@multicorewareinc.com>
Signed-off-by: I-Jui (Ray) Sung <ray@multicorewareinc.com>