dragonegg: Use latest pin define for warm_reset (#39)

Dragonegg uses the latest pin define for warm_reset, same to other
recent boards.

This mirrors CL:894697

BUG=b:113351518
TEST=Start servod and switch the warm_reset on Dragonegg.
$ sudo servod -b dragonegg
$ dut-control warm_reset:on sleep:0.2 warm_reset:off
Check that AP reboots and EC keeps running.

Change-Id: Id003d56f1a65092274cd09d92737e918f005ca4d
Signed-off-by: Shelley Chen <shchen@google.com>
Reviewed-on: https://chromium-review.googlesource.com/1194886
Commit-Ready: Shelley Chen <shchen@chromium.org>
Tested-by: Subrata Banik <subrata.banik@intel.com>
Tested-by: Shelley Chen <shchen@chromium.org>
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-by: Wai-Hong Tam <waihong@google.com>
diff --git a/servo/data/servo_dragonegg_overlay.xml b/servo/data/servo_dragonegg_overlay.xml
index 55d8580..c56915d 100644
--- a/servo/data/servo_dragonegg_overlay.xml
+++ b/servo/data/servo_dragonegg_overlay.xml
@@ -9,6 +9,9 @@
   <include>
     <name>cr50.xml</name>
   </include>
+  <include>
+    <name>warm_reset_reconf.xml</name>
+  </include>
   <!-- ******** Controls ******** -->
   <control>
     <name>power_state</name>