Increase RBE usage for ART tests to 10%

Test: m art-run-test-{host,target,jvm}-data
Change-Id: Id762595cb1687fb35c5eb90dbfe57fd4cbbcfc94
diff --git a/test/art_build_rules.py b/test/art_build_rules.py
index 5fc681b..7d83bd4 100644
--- a/test/art_build_rules.py
+++ b/test/art_build_rules.py
@@ -32,8 +32,8 @@
 from shutil import rmtree
 from os import remove
 
-USE_RBE_FOR_JAVAC = 0    # Percentage of tests that can use RBE (between 0 and 100)
-USE_RBE_FOR_D8 = 0       # Percentage of tests that can use RBE (between 0 and 100)
+USE_RBE_FOR_JAVAC = 10    # Percentage of tests that can use RBE (between 0 and 100)
+USE_RBE_FOR_D8 = 10       # Percentage of tests that can use RBE (between 0 and 100)
 
 def rm(*patterns):
   for pattern in patterns: