pw_tokenizer: Move encode_args.h header to make it public

Change-Id: I337cd70dce1344cd61a661ca41d50035d2b37aa2
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/39983
Reviewed-by: Keir Mierle <keir@google.com>
Commit-Queue: Wyatt Hepler <hepler@google.com>
diff --git a/pw_tokenizer/BUILD b/pw_tokenizer/BUILD
index f05d088..4b288be 100644
--- a/pw_tokenizer/BUILD
+++ b/pw_tokenizer/BUILD
@@ -37,10 +37,10 @@
         "public/pw_tokenizer/internal/pw_tokenizer_65599_fixed_length_80_hash_macro.h",
         "public/pw_tokenizer/internal/pw_tokenizer_65599_fixed_length_96_hash_macro.h",
         "public/pw_tokenizer/internal/tokenize_string.h",
-        "pw_tokenizer_private/encode_args.h",
         "tokenize.cc",
     ],
     hdrs = [
+        "public/pw_tokenizer/encode_args.h",
         "public/pw_tokenizer/hash.h",
         "public/pw_tokenizer/tokenize.h",
     ],