Updates the key maps. During this I noticed that the dream keymap didn't have all of the media buttons like the sapphire key map...! So this is now changed to match.
BUG=
1779435
Automated import of CL 145382
-key 164 PLAYPAUSE WAKE
-key 128 STOP WAKE
-key 163 NEXTSONG WAKE
-key 165 PREVIOUSSONG WAKE
-key 168 REWIND WAKE
-key 159 FORWARD WAKE
-
+key 164 MEDIA_PLAY_PAUSE WAKE
+key 128 MEDIA_STOP WAKE
+key 163 MEDIA_NEXT WAKE
+key 165 MEDIA_PREVIOUS WAKE
+key 168 MEDIA_REWIND WAKE
+key 159 MEDIA_FAST_FORWARD WAKE