[wasm] [cleanup] Fix outdated comment

This CL just updates an outdated comment.

Bug: v8:10982
Change-Id: I3ae60c9bf345b50c8e6fd7ce9c19ae9d0894734e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2539911
Commit-Queue: Vicky Kontoura <vkont@google.com>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71230}

src/wasm/wasm-constants.h

@@ -123,8 +123,8 @@ constexpr uint32_t kExceptionAttribute = 0;
 
 constexpr int kAnonymousFuncIndex = -1;
 
-// The number of calls to an exported wasm function that will be handled
-// by the generic wrapper. Once this threshold is reached, a specific wrapper
+// The number of calls to an exported Wasm function that will be handled
+// by the generic wrapper. Once the budget is exhausted, a specific wrapper
 // is to be compiled for the function's signature.
 constexpr uint32_t kGenericWrapperBudget = 6;