refine remote hwdb file

conf/hwdb/10-remote.hwdb

@@ -1,6 +1,18 @@
 evdev:name:HAOBO Technology USB Composite Device Keyboard:*
+ # center OK button
  KEYBOARD_KEY_c0041=enter
+ # power key? possibly doesn't produce input when a remote code has been learned
  KEYBOARD_KEY_10081=stop
+ # microphone button
  KEYBOARD_KEY_c00cf=mute
- KEYBOARD_KEY_c0223=h
+ # home key
+ KEYBOARD_KEY_c0223=tab
+ # back key
+ KEYBOARD_KEY_c0224=backspace
+ # play/pause key
+ KEYBOARD_KEY_c00cd=space
+ # skip forward
+ KEYBOARD_KEY_c00b5=f
+ # skip backward
+ KEYBOARD_KEY_c00b6=r