Core Update 175: Ship tzdata

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

diff --git a/config/rootfiles/core/175/filelists/tzdata b/config/rootfiles/core/175/filelists/tzdata
new file mode 120000 (symlink)
index 0000000..5a6e325
--- /dev/null
+++ b/config/rootfiles/core/175/filelists/tzdata
@@ -0,0 +1 @@
+../../../common/tzdata
\ No newline at end of file