exa2pro/starpu-max: porting work to Maxeler DFE @ ba3f238d96717ebf297e7ba7209fa03aa23c83ff

Samuel Thibault 57ec4fcd64 Fix return value in valgrind case		13 lat temu
..
explicit_combined_worker.c	685f84fcdb Include valgrind.h in helper.h, not directly in the tests.	13 lat temu
parallel_kernels.c	57ec4fcd64 Fix return value in valgrind case	13 lat temu
parallel_kernels_spmd.c	57ec4fcd64 Fix return value in valgrind case	13 lat temu
spmd_pgreedy.c	685f84fcdb Include valgrind.h in helper.h, not directly in the tests.	13 lat temu