Disable release upgrade checking

Author: igorpecovnik

packages/bsp/common/etc/update-manager/release-upgrades

@@ -0,0 +1,17 @@
+# Default behavior for the release upgrader.
+
+
+[DEFAULT]
+# Default prompting and upgrade behavior, valid options:
+#
+#  never  - Never check for, or allow upgrading to, a new release.
+#  normal - Check to see if a new release is available.  If more than one new
+#           release is found, the release upgrader will attempt to upgrade to
+#           the supported release that immediately succeeds the
+#           currently-running release.
+#  lts    - Check to see if a new LTS release is available.  The upgrader
+#           will attempt to upgrade to the first LTS release available after
+#           the currently-running one.  Note that if this option is used and
+#           the currently-running release is not itself an LTS release the
+#           upgrader will assume prompt was meant to be normal.
+Prompt=never