core149: Ship zstd which is now part of the base system

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

diff --git a/config/rootfiles/core/149/filelists/zstd b/config/rootfiles/core/149/filelists/zstd
new file mode 120000 (symlink)
index 0000000..d6d4a3b
--- /dev/null
+++ b/config/rootfiles/core/149/filelists/zstd
@@ -0,0 +1 @@
+../../../common/zstd
\ No newline at end of file