Revert "[RISCV] Temporarily move riscv-expand-pseudo pass to PreEmitPass2"

This reverts commit 05a20a9e9a.

llvm/lib/Target/RISCV/RISCVTargetMachine.cpp

@@ -168,12 +168,11 @@ bool RISCVPassConfig::addGlobalInstructionSelect() {
   return false;
 }
 
-void RISCVPassConfig::addPreSched2() { }
+void RISCVPassConfig::addPreSched2() { addPass(createRISCVExpandPseudoPass()); }
 
 void RISCVPassConfig::addPreEmitPass() { addPass(&BranchRelaxationPassID); }
 
 void RISCVPassConfig::addPreEmitPass2() {
-  addPass(createRISCVExpandPseudoPass());
   // Schedule the expansion of AMOs at the last possible moment, avoiding the
   // possibility for other passes to break the requirements for forward
   // progress in the LR/SC block.