Add lsearch(3) for ltrace.

Bug: 13746936
Change-Id: I833c6ba70a1752c04dab7de389f5bebb741662b3
diff --git a/libc/Android.mk b/libc/Android.mk
index 3faa47f..44bf388 100644
--- a/libc/Android.mk
+++ b/libc/Android.mk
@@ -292,6 +292,7 @@
     upstream-netbsd/lib/libc/stdlib/ldiv.c \
     upstream-netbsd/lib/libc/stdlib/lldiv.c \
     upstream-netbsd/lib/libc/stdlib/lrand48.c \
+    upstream-netbsd/lib/libc/stdlib/lsearch.c \
     upstream-netbsd/lib/libc/stdlib/mrand48.c \
     upstream-netbsd/lib/libc/stdlib/nrand48.c \
     upstream-netbsd/lib/libc/stdlib/_rand48.c \