meta-google: systemd: Enable timesyncd by default

This enables timesync support for the gbmc distro.

Change-Id: Idb653e6b98a347b5d8c3a0b3a16c6a4abbe268ac
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/meta-google/recipes-google/systemd/files/40-gbmc-time.conf b/meta-google/recipes-google/systemd/files/40-gbmc-time.conf
new file mode 100644
index 0000000..ca30e45
--- /dev/null
+++ b/meta-google/recipes-google/systemd/files/40-gbmc-time.conf
@@ -0,0 +1,10 @@
+[Time]
+ConnectionRetrySec=30
+PollIntervalMinSec=30
+PollIntervalMaxSec=60
+SaveIntervalSec=15
+# time.google.com addresses are stable, no need for DNS
+NTP=2001:4860:4806::
+NTP=2001:4860:4806:4::
+NTP=2001:4860:4806:8::
+NTP=2001:4860:4806:c::