exa2pro/starpu-max: porting work to Maxeler DFE @ 1bc571e77aba8b9432da062bae5ef9e2ec4228f6

Cyril Roelandt 685f84fcdb Include valgrind.h in helper.h, not directly in the tests.		14 lat temu
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wt_broadcast.c	685f84fcdb Include valgrind.h in helper.h, not directly in the tests.	14 lat temu
wt_host.c	685f84fcdb Include valgrind.h in helper.h, not directly in the tests.	14 lat temu