Fix quick mode bugs for Mips.

This patch enable quick mode for Mips and allows the emulator to boot.
However the emulator is still not 100% functional. It still have problems
launching some apps.

Change-Id: Id46a39a649a2fd431a9f13b06ecf34cbd1d20930
Signed-off-by: Douglas Leung <douglas@mips.com>
diff --git a/dex2oat/dex2oat.cc b/dex2oat/dex2oat.cc
index de2960c..bf04a54 100644
--- a/dex2oat/dex2oat.cc
+++ b/dex2oat/dex2oat.cc
@@ -1130,8 +1130,8 @@
   }
 
   if (compiler_filter_string == nullptr) {
-    if (instruction_set == kMips) {
-      // TODO: fix compiler for Mips.
+    if (instruction_set == kMips64) {
+      // TODO: fix compiler for Mips64.
       compiler_filter_string = "interpret-only";
     } else if (image) {
       compiler_filter_string = "speed";