source: Update the source tree to 4.14 and bump the package revision

Change-Id: I76040fdc29166d76bc15cbf126721106393cfa72
diff --git a/debian/changelog b/debian/changelog
index ea6787e..b0676d9 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+imx-atf (4-1) mendel-day; urgency=medium
+
+  * Bump to update to the new upstream branch.
+
+ -- Coral <coral-support@google.com>  Tue, 10 Oct 2019 15:10:10 -0500
+
 imx-atf (3-1) mendel-day; urgency=medium
 
   * Cut for day release.