Typo in feature name for LightweightNoStatePrefetch

This doesn't affect anything yet, but makes the name more readable for
launching using feature launch.

Change-Id: I6946e9e797d0c5927ddd1b079acba52b041b226c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1717777Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Commit-Queue: Ryan Sturm <ryansturm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#681255}

third_party/blink/common/features.cc

@@ -274,7 +274,7 @@ const base::Feature kAudioWorkletRealtimeThread{
 
 // A feature to reduce the set of resources fetched by No-State Prefetch.
 const base::Feature kLightweightNoStatePrefetch{
-    "kLightweightNoStatePrefetch", base::FEATURE_DISABLED_BY_DEFAULT};
+    "LightweightNoStatePrefetch", base::FEATURE_DISABLED_BY_DEFAULT};
 
 // Use scroll gestures for scrollbar scrolls (see https://crbug.com/954007).
 const base::Feature kScrollbarInjectScrollGestures{