[Cleanup] Add cargo targets to .gitignore

Test: N/A
Change-Id: I23d34a335f327b941f833ff95fd07ef0b937505f
diff --git a/.gitignore b/.gitignore
index 96ef6c0..5917dfb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,5 @@
-/target
+apkdmverity/target/
+zipfuse/target/
+policy
+zipfuse/target/
 Cargo.lock