Unlike ragel 6.9, which builds on x86_gcc2 primary arch, 7.0.0.10
BUILD_REQUIRES devel:libcolm which is not available on x86_gcc2.
We therefore need to keep 6.9 for x86_gcc2.
So, in order to allow x86_gcc2 hybrid to be able to activate both
ragel-6.9 and ragel_x86-7.0.0.10, we cannot install cmd:ragel in
$commandBinDir; we need to install it in $binDir.
Minor change: drop the call to autoreconf as it is not needed.
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