eal: revert C++ app build fix
authorDavid Marchand <david.marchand@6wind.com>
Fri, 13 Nov 2015 09:35:25 +0000 (10:35 +0100)
committerThomas Monjalon <thomas.monjalon@6wind.com>
Mon, 23 Nov 2015 15:20:31 +0000 (16:20 +0100)
It does not build with every C++ compilers.
Reverts the _UNDERLYING_TYPE workarounds to prepare
for another fix in the next patch.

Fixes: 621389bbbe08 ("eal: fix C++ app build")

Signed-off-by: David Marchand <david.marchand@6wind.com>

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