Fix root level Android.mk to now point to the correct nanobench makefile

R=mtklein@google.com

Author: djsollen@google.com

Review URL: https://codereview.chromium.org/494193003
diff --git a/platform_tools/android/gyp_gen/makefile_writer.py b/platform_tools/android/gyp_gen/makefile_writer.py
index dbefa5e..d8d0c61 100644
--- a/platform_tools/android/gyp_gen/makefile_writer.py
+++ b/platform_tools/android/gyp_gen/makefile_writer.py
@@ -117,7 +117,7 @@
 #
 
 # benchmark (timings)
-include $(BASE_PATH)/tools/Android.mk
+include $(BASE_PATH)/bench/Android.mk
 
 # golden-master (fidelity / regression test)
 include $(BASE_PATH)/gm/Android.mk
diff --git a/platform_tools/android/tests/expectations/Android.mk b/platform_tools/android/tests/expectations/Android.mk
index 798fceb..f5fbc29 100644
--- a/platform_tools/android/tests/expectations/Android.mk
+++ b/platform_tools/android/tests/expectations/Android.mk
@@ -156,7 +156,7 @@
 #
 
 # benchmark (timings)
-include $(BASE_PATH)/tools/Android.mk
+include $(BASE_PATH)/bench/Android.mk
 
 # golden-master (fidelity / regression test)
 include $(BASE_PATH)/gm/Android.mk