patch: Correct firbank.cpp syntax

[Stefan Seefeld]

This attached patch fixes the 'make benchmark' build with Intel's icl.
GCC didn't complain about it, though I wonder whether the original code
was actually valid C++.

Committed as obvious.

Thanks,
		Stefan

-- 
Stefan Seefeld
CodeSourcery
stefan at codesourcery.com
(650) 331-3385 x718
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