Remove GKI artifacts on installclean

Bug: 177495407
Test: m installclean && GKI prebuilts under OUT dir are removed
Change-Id: I05f888376c7f2b253e9966c1a652063a6c4760d9
diff --git a/ui/build/cleanbuild.go b/ui/build/cleanbuild.go
index 06f6c63..a5986b2 100644
--- a/ui/build/cleanbuild.go
+++ b/ui/build/cleanbuild.go
@@ -117,6 +117,7 @@
 		productOut("misc_info.txt"),
 		productOut("apex"),
 		productOut("kernel"),
+		productOut("kernel-*"),
 		productOut("data"),
 		productOut("skin"),
 		productOut("obj/NOTICE_FILES"),