MIPS: Fix several failures due to unsupported Sed and Seh innstructions on MIPS32R1

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

Index: src/compiler/mips/code-generator-mips.cc
diff --git a/src/compiler/mips/code-generator-mips.cc b/src/compiler/mips/code-generator-mips.cc
index 361cf92a413f9c644b26b1f311af96f34ce18d4a..12d3e75a05e193f874cc01e6babdebd79559d731 100644
--- a/src/compiler/mips/code-generator-mips.cc
+++ b/src/compiler/mips/code-generator-mips.cc
@@ -1394,10 +1394,10 @@ CodeGenerator::CodeGenResult CodeGenerator::AssembleArchInstruction(
 
     // ... more basic instructions ...
     case kMipsSeb:
-      __ seb(i.OutputRegister(), i.InputRegister(0));
+      __ Seb(i.OutputRegister(), i.InputRegister(0));
       break;
     case kMipsSeh:
-      __ seh(i.OutputRegister(), i.InputRegister(0));
+      __ Seh(i.OutputRegister(), i.InputRegister(0));
       break;
     case kMipsLbu:
       __ lbu(i.OutputRegister(), i.MemoryOperand());