Core Update 173: Ship libtiff

Signed-off-by: Peter Müller <peter.mueller@ipfire.org>

diff --git a/config/rootfiles/core/173/filelists/libtiff b/config/rootfiles/core/173/filelists/libtiff
new file mode 120000 (symlink)
index 0000000..dd89e3c
--- /dev/null
+++ b/config/rootfiles/core/173/filelists/libtiff
@@ -0,0 +1 @@
+../../../common/libtiff
\ No newline at end of file