Enable bp2build for cc modules relying on sysprop

Bug: 244439349
Test: m bp2build
Test: Inspect BUILD.bazel files
Test: Unit tests
Change-Id: I85bfb9fa69cb3f96b15bdbeb797dba86b3349804
diff --git a/cc/Android.bp b/cc/Android.bp
index 91a3fb0..8860f78 100644
--- a/cc/Android.bp
+++ b/cc/Android.bp
@@ -45,6 +45,7 @@
         "snapshot_utils.go",
         "stl.go",
         "strip.go",
+        "sysprop.go",
         "tidy.go",
         "util.go",
         "vendor_snapshot.go",