Speedup div/rem by constants on x86 and x86_64

This is done using the algorithms in Hacker's Delight chapter 10.

Change-Id: I7bacefe10067569769ed31a1f7834f796fb41119
diff --git a/compiler/Android.mk b/compiler/Android.mk
index 904f117..c663fcb 100644
--- a/compiler/Android.mk
+++ b/compiler/Android.mk
@@ -96,6 +96,7 @@
 	optimizing/code_generator_arm64.cc \
 	optimizing/code_generator_x86.cc \
 	optimizing/code_generator_x86_64.cc \
+	optimizing/code_generator_utils.cc \
 	optimizing/constant_folding.cc \
 	optimizing/dead_code_elimination.cc \
 	optimizing/graph_checker.cc \