Generate xlat/*.in files

Automatically convert xlat structures from *.c files to xlat/*.in files
using "./generate_xlat_in.sh *.c" command.
diff --git a/xlat/wait4_options.in b/xlat/wait4_options.in
new file mode 100644
index 0000000..869e5d5
--- /dev/null
+++ b/xlat/wait4_options.in
@@ -0,0 +1,10 @@
+WNOHANG
+WUNTRACED
+WEXITED
+WTRAPPED
+WSTOPPED
+WCONTINUED
+WNOWAIT
+__WCLONE
+__WALL
+__WNOTHREAD