Converted more stuff to bazel.

Change-Id: I18c4d5c38cc810086d00479962c1b3f16203a252
diff --git a/aos/common/libc/libc.gyp b/aos/common/libc/libc.gyp
index d7fc357..6b409f0 100644
--- a/aos/common/libc/libc.gyp
+++ b/aos/common/libc/libc.gyp
@@ -1,3 +1,4 @@
+# Converted to bazel
 {
   'targets': [
     {