ANDROID: GKI: add some padding to some driver core structures

It was requested that the following structures get some padding in order
to be able to handle future issues/bugs/fixes that might arise:

  struct dev_links_info
  struct device_link
  struct fwnode_handle

Bug: 163662096
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ie26f422c590f9ddbe99f0885f36da3feec64e9a6
Signed-off-by: Will McVicker <willmcvicker@google.com>