core157: Ship poppler

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

diff --git a/config/rootfiles/core/157/filelists/poppler b/config/rootfiles/core/157/filelists/poppler
new file mode 120000 (symlink)
index 0000000..39aa6c2
--- /dev/null
+++ b/config/rootfiles/core/157/filelists/poppler
@@ -0,0 +1 @@
+../../../common/poppler
\ No newline at end of file