Upgrade rust/crates/lock_api to 0.4.4

Test: make
Change-Id: I35af2e268d9e0035984f0ee655573eae8beb11b2

Android.bp

diff --git a/Android.bp b/Android.bp
index cc03613..74f015c 100644
--- a/Android.bp
+++ b/Android.bp
@@ -1,4 +1,5 @@
 // This file is generated by cargo2android.py --run --device --dependencies --tests.
+// Do not modify this file as changes will be overridden on upgrade.
 
 package {
     default_applicable_licenses: ["external_rust_crates_lock_api_license"],
@@ -62,6 +63,9 @@
 rust_test_host {
     name: "lock_api_host_test_src_lib",
     defaults: ["lock_api_defaults"],
+    test_options: {
+        unit_test: true,
+    },
 }
 
 rust_test {