GPU Calc: Sum of product doesn't check out-of-bound accesses

AMLOEXT-244 FIX

Change-Id: I5f49f7acccaabd2a97d8ac4bfba4b973889278f1
GPU Calc: Testcase for Sums of Product that have out-of-bound window

AMLOEXT-244 BUG

Change-Id: Iefce62484b2189b37b747bfd4b739115dafbc40d