some optimization in aecm for armv7.
Review URL: http://webrtc-codereview.appspot.com/89018

git-svn-id: http://webrtc.googlecode.com/svn/trunk@346 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/src/common_audio/signal_processing_library/main/source/Android.mk b/src/common_audio/signal_processing_library/main/source/Android.mk
index ef03193..1fc0d1c 100644
--- a/src/common_audio/signal_processing_library/main/source/Android.mk
+++ b/src/common_audio/signal_processing_library/main/source/Android.mk
@@ -56,6 +56,7 @@
     sin_table.c \
     sin_table_1024.c \
     spl_sqrt.c \
+    spl_sqrt_floor.c \
     spl_version.c \
     splitting_filter.c \
     sqrt_of_one_minus_x_squared.c \