Add host art from a master build

Bug: b/242548283
Change-Id: I190563fdfc78b964f8281d51b5e9dcb9f0fc98b5
diff --git a/.gitignore b/.gitignore
index ada4839..ae1be52 100644
--- a/.gitignore
+++ b/.gitignore
@@ -276,6 +276,8 @@
 tools/*/host/art-12.0.0-beta4.tar.gz
 tools/*/host/art-13-dev
 tools/*/host/art-13-dev.tar.gz
+tools/*/host/art-master
+tools/*/host/art-master.tar.gz
 tools/*/art.tar.gz
 tools/*/dalvik
 tools/*/dalvik-4.0.4