Include gerrit.war in api_{install,deploy}

This patch adds gerrit.war into api_{install,deploy} buck build step.
This allows third party maven based builds depend on gerrit.war
artifact.

Change-Id: I22c8d3339a1647913967e423e45462c2c5c255de
Signed-off-by: Dariusz Luksza <dariusz@luksza.org>

tools/maven/BUCK

diff --git a/tools/maven/BUCK b/tools/maven/BUCK
index 2553d03..ca38e45 100644
--- a/tools/maven/BUCK
+++ b/tools/maven/BUCK
@@ -17,6 +17,7 @@
     'gerrit-plugin-api': '//:plugin-api-src',
     'gerrit-plugin-gwtui': '//:plugin-gwtui-src',
   },
+  war = {'gerrit-war': '//:release'},
 )
 
 python_binary(