leg-java: add openjdk7 and 8 sanity tests

Signed-off-by: Andrew McDermott <andrew.mcdermott@linaro.org>
diff --git a/lava-submit.py b/lava-submit.py
index a16c5e9..59d141b 100755
--- a/lava-submit.py
+++ b/lava-submit.py
@@ -69,6 +69,8 @@
 ]
 
 tests_openembedded_leg_java = [
+    'openjdk7-sanity',
+    'openjdk8-sanity',
     'mauve',
     'jtreg',
 ]