hs-test: clean up Makefile for compatibility with ci-management

Type: test
Change-Id: Ic767bc1eef0180941dd8730f9fcca1389ad7e043
Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
diff --git a/.gitignore b/.gitignore
index 3d2c2fc..5c707a8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -122,7 +122,7 @@
 /extras/hs-test/vpp-data
 /extras/hs-test/hs-test
 /extras/hs-test/http_server
-/extras/hs-test/.build.vpp
+/extras/hs-test/.build.ok
 
 # ./configure
 /CMakeFiles