Switch to current upstream OpenBSD wsetup.c.

Change-Id: I2c1123f3e1d3c4af7fd7bf354e763934a39b78c0
diff --git a/libc/Android.mk b/libc/Android.mk
index ff21d6a..9f8476b 100644
--- a/libc/Android.mk
+++ b/libc/Android.mk
@@ -227,7 +227,6 @@
     upstream-freebsd/lib/libc/stdio/makebuf.c \
     upstream-freebsd/lib/libc/stdio/mktemp.c \
     upstream-freebsd/lib/libc/stdio/setvbuf.c \
-    upstream-freebsd/lib/libc/stdio/wsetup.c \
     upstream-freebsd/lib/libc/stdlib/abs.c \
     upstream-freebsd/lib/libc/stdlib/getopt_long.c \
     upstream-freebsd/lib/libc/stdlib/imaxabs.c \
@@ -436,6 +435,7 @@
     upstream-openbsd/lib/libc/stdio/wbuf.c \
     upstream-openbsd/lib/libc/stdio/wprintf.c \
     upstream-openbsd/lib/libc/stdio/wscanf.c \
+    upstream-openbsd/lib/libc/stdio/wsetup.c \
     upstream-openbsd/lib/libc/stdlib/atoi.c \
     upstream-openbsd/lib/libc/stdlib/atol.c \
     upstream-openbsd/lib/libc/stdlib/atoll.c \