exa2pro/starpu-max: porting work to Maxeler DFE @ 8160206f313bdcd5261a3ebaaa18c0868f5234a8

Nathalie Furmento 1e3c1e9f49 examples: use variadic macros to be portable on MSVC		12 lat temu
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matvecmult.c	1e3c1e9f49 examples: use variadic macros to be portable on MSVC	12 lat temu
matvecmult_kernel.cl	b9476e6d4a update code w.r.t coding style	14 lat temu