staging: vt6655: Removing else after break statement to fix warning

This patch fixes the checkpatch.pl warning in key.c file
WARNING: else is not useful after a break or return

Signed-off-by: Dilek Uzulmez <dilekuzulmez@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>