Add new refresh key constant.

Bug: 64149858
Bug: 64662317
Test: Builds and manual tests with Chromebook.

Change-Id: I865d657ee7d78b5e45f642e786d26a65a14f49e1
diff --git a/data/keyboards/Generic.kl b/data/keyboards/Generic.kl
index 74f8c71..8699cb4 100644
--- a/data/keyboards/Generic.kl
+++ b/data/keyboards/Generic.kl
@@ -192,7 +192,7 @@
 # key 170 "KEY_ISO"
 key 171   MUSIC
 key 172   HOME
-# key 173 "KEY_REFRESH"
+key 173   REFRESH
 # key 174 "KEY_EXIT"
 # key 175 "KEY_MOVE"
 # key 176 "KEY_EDIT"