ART: Allow to compile interpret-only mips64 files

Include enough infrastructure to allow cross-compiling for mips64,
interpret-only. This includes the instruction-set-features, frame
size info and utils assembler.

Also add a disassembler for oatdump, and support in patchoat.

Note: the runtime cannot run mips64, yet.

Change-Id: Id106581fa76b478984741c62a8a03be0f370d992
diff --git a/runtime/Android.mk b/runtime/Android.mk
index 13a216c..3330b2d 100644
--- a/runtime/Android.mk
+++ b/runtime/Android.mk
@@ -170,6 +170,8 @@
   arch/arm64/registers_arm64.cc \
   arch/mips/instruction_set_features_mips.cc \
   arch/mips/registers_mips.cc \
+  arch/mips64/instruction_set_features_mips64.cc \
+  arch/mips64/registers_mips64.cc \
   arch/x86/instruction_set_features_x86.cc \
   arch/x86/registers_x86.cc \
   arch/x86_64/registers_x86_64.cc \