PPC: [turbofan] Add initial support for SOFT deopts.

src/compiler/ppc/code-generator-ppc.cc

Index: src/compiler/ppc/code-generator-ppc.cc
diff --git a/src/compiler/ppc/code-generator-ppc.cc b/src/compiler/ppc/code-generator-ppc.cc
index f74a5add8d237acd76952f1681460eba01d4f967..e82e4a114304dc35b6f4b0fc28bfb53263328d53 100644
--- a/src/compiler/ppc/code-generator-ppc.cc
+++ b/src/compiler/ppc/code-generator-ppc.cc
@@ -759,7 +759,9 @@ void CodeGenerator::AssembleArchInstruction(Instruction* instr) {
     case kArchDeoptimize: {
       int deopt_state_id =
           BuildTranslation(instr, -1, 0, OutputFrameStateCombine::Ignore());
-      AssembleDeoptimizerCall(deopt_state_id, Deoptimizer::EAGER);
+      Deoptimizer::BailoutType bailout_type =
+          Deoptimizer::BailoutType(MiscField::decode(instr->opcode()));
+      AssembleDeoptimizerCall(deopt_state_id, bailout_type);
       break;
     }
     case kArchRet: