GPU Calc: unit test cases for COUPNUM

AMLOEXT-74 BUG

Change-Id: Ice115dc1e9b22fdaff9a8fdadabe9b93635ef315
Signed-off-by: haochen <haochen@multicorewareinc.com>
Signed-off-by: I-Jui (Ray) Sung <ray@multicorewareinc.com>
GPU Calc: implemented COUPNUM

AMLOEXT-74 FIX

Change-Id: Ic7f274f089f7f6cc6b767c4a07844014eeded61d
Signed-off-by: haochen <haochen@multicorewareinc.com>
Signed-off-by: I-Jui (Ray) Sung <ray@multicorewareinc.com>