[BOLT] Do not process DWARF relocs

Summary:
Use the new API introduced in https://reviews.llvm.org/D106624
to request LLVM do not process relocations for debug sections, since
BOLT processes final binaries that are already relocated.

(cherry picked from FBD31449206)

bolt/src/DWARFRewriter.cpp

@@ -883,7 +883,7 @@ std::unique_ptr<BinaryContext>
 createDwarfOnlyBC(const object::ObjectFile &File) {
   return BinaryContext::createBinaryContext(
       &File, false,
-      DWARFContext::create(File, DWARFContext::ProcessDebugRelocations::Process,
+      DWARFContext::create(File, DWARFContext::ProcessDebugRelocations::Ignore,
                            nullptr, "", WithColor::defaultErrorHandler,
                            WithColor::defaultWarningHandler));
 }

bolt/src/RewriteInstance.cpp

@@ -494,10 +494,10 @@ RewriteInstance::RewriteInstance(ELFObjectFileBase *File, const int Argc,
 
   BC = BinaryContext::createBinaryContext(
       File, IsPIC,
-      DWARFContext::create(
-          *File, DWARFContext::ProcessDebugRelocations::Process, nullptr,
-          opts::DWPPathName, WithColor::defaultErrorHandler,
-          WithColor::defaultWarningHandler));
+      DWARFContext::create(*File, DWARFContext::ProcessDebugRelocations::Ignore,
+                           nullptr, opts::DWPPathName,
+                           WithColor::defaultErrorHandler,
+                           WithColor::defaultWarningHandler));
 
   BAT = std::make_unique<BoltAddressTranslation>(*BC);