GPU Calc: unit test cases for PV

Need open macro NO_FALLBACK_TO_SWINTERP in formulagroupcl.cxx for test

AMLOEXT-73 BUG

Change-Id: I2ed3e1dfa07aac5f28942a1a2c94826757c9d0cd
Signed-off-by: haochen <haochen@multicorewareinc.com>
Signed-off-by: I-Jui (Ray) Sung <ray@multicorewareinc.com>
GPU Calc: implement fix for PV

AMLOEXT-73 FIX

Change-Id: I0b9014a5d78165adaaa41c7e6cc05e876981f37d
Signed-off-by: haochen <haochen@multicorewareinc.com>
Signed-off-by: I-Jui (Ray) Sung <ray@multicorewareinc.com>