exa2pro/starpu-max: porting work to Maxeler DFE @ 6a9b202b2843b80416b57f7c7d9b0e4460b51aaf

Nathalie Furmento 7445ed6406 tests: minor fixes following icc warnings		%!s(int64=13) %!d(string=hai) anos
..
invalid_blocking_calls.c	685f84fcdb Include valgrind.h in helper.h, not directly in the tests.	%!s(int64=13) %!d(string=hai) anos
invalid_tasks.c	c1d9d5b7f1 tests/errorcheck/invalid_tasks.c: make sure StarPU does not start any GPU device	%!s(int64=13) %!d(string=hai) anos
starpu_init_noworker.c	7445ed6406 tests: minor fixes following icc warnings	%!s(int64=13) %!d(string=hai) anos