Update headset keymap to use KEY_VOICECOMMAND

Bug: 17501585
Change-Id: I4a93e421a02bbdd1859926b5028a5dbf6adf2207
diff --git a/h2w_headset.kl b/h2w_headset.kl
index 01f50ff..9fe9d12 100644
--- a/h2w_headset.kl
+++ b/h2w_headset.kl
@@ -1,4 +1,4 @@
 key 226   HEADSETHOOK
-key 217   VOICE_ASSIST
+key 582   VOICE_ASSIST
 key 115   VOLUME_UP
 key 114   VOLUME_DOWN