Marked command 'save' as deprecated.

- Note: The command will be completely removed after about a month.
  Custom, third party scripts will require updates, in case they were
  using this command. Please see the 'save' documentation.

Signed-off-by: Haru <haru@dotalux.com>
Fixed an error in the HPMHookGen

Signed-off-by: Haru <haru@dotalux.com>