R600: Use SHT_PROGBITS for the .AMDGPU.config section

The libelf implementation that is distributed here:
http://www.mr511.de/software/english.html
will not parse sections that are marked SHT_NULL.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180230 91177308-0d34-0410-b5e6-96231b3b80d8
R600: Initialize BooleanVectorContents

Fixes test/CodeGen/R600/setcc.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180231 91177308-0d34-0410-b5e6-96231b3b80d8