Add mbtk_version

Change-Id: I9f52b147f4f2a40af31eab9dd0014e7ae2402a44
diff --git a/build.sh b/build.sh
index 89fd1e0..0e675bb 100755
--- a/build.sh
+++ b/build.sh
@@ -131,6 +131,7 @@
 	[ -f out/bin/mbtk_sdk_ready ] && cp -f out/bin/mbtk_sdk_ready $1/bin
 	[ -f out/bin/mbtk_reboot ] && cp -f out/bin/mbtk_reboot $1/bin
 	[ -f out/bin/mbtk_gnssd ] && cp -f out/bin/mbtk_gnssd $1/bin
+	[ -f out/bin/mbtk_version ] && cp -f out/bin/mbtk_version $1/bin
 }
 
 function file_copy()