ethtool: add version 4.2 tarball.

Change-Id: Ice102b490399f745921941b8f5990cc94ef030d2
diff --git a/ethtool-4.2.tar.gz b/ethtool-4.2.tar.gz
new file mode 100644
index 0000000..6a27773
--- /dev/null
+++ b/ethtool-4.2.tar.gz
Binary files differ