Add a missing include causing compilation (missing declaration) problems.

Upstream-Status: Submitted

Signed-off-by: Tom Zanussi <tom.zanussi (a] intel.com>

Index: lms-7.1.20/src/tools/ATVersion.cpp
===================================================================
--- lms-7.1.20.orig/src/tools/ATVersion.cpp	2012-05-29 20:34:34.061997035 -0500
+++ lms-7.1.20/src/tools/ATVersion.cpp	2012-05-29 20:35:22.671412948 -0500
@@ -40,6 +40,7 @@
 #include <cerrno>
 #include <fstream>
 #include <dirent.h>
+#include <unistd.h>
 
 #define AT_VERSION_ARGUMENT "--version"
 #define AT_VERSION_MAXSIZE 40