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
diff --git a/lib/Target/R600/AMDGPUAsmPrinter.cpp b/lib/Target/R600/AMDGPUAsmPrinter.cpp
index dc0461a..7dabbfa 100644
--- a/lib/Target/R600/AMDGPUAsmPrinter.cpp
+++ b/lib/Target/R600/AMDGPUAsmPrinter.cpp
@@ -59,7 +59,7 @@
 
   const MCSectionELF *ConfigSection = getObjFileLowering().getContext()
                                               .getELFSection(".AMDGPU.config",
-                                              ELF::SHT_NULL, 0,
+                                              ELF::SHT_PROGBITS, 0,
                                               SectionKind::getReadOnly());
   OutStreamer.SwitchSection(ConfigSection);
   if (STM.device()->getGeneration() > AMDGPUDeviceInfo::HD6XXX) {