Use compilation config-time checks instead of linker versionHEADmaster

To rely on current linker's version to determine the libbfd version is
unreliable. In particular it's likely to yield wrong result in next
use-cases:
 - cross-compilations
 - build with non-GNU toolchain
 - just  build with another linker version

Unfortunately libbfd doesn't provide a reliable way to retrieve version
information, so we will have to check for features in specific versions
we are interested in.

Note: this essentially reverts most of the changes introduced by
c57eae31615bc70072c7e99d712c2285817bd2e5.

Signed-off-by: Alexander Golubev <fatzer2@gmail.com>

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