No functional change.

This patch migrates livepatch support (i.e. used during module
add/or load and remove/or deletion) from core module code into
kernel/module/livepatch.c. At the moment it contains code to
persist Elf information about a given livepatch module, only.
The new file was added to MAINTAINERS.
Reviewed-by: NPetr Mladek <pmladek@suse.com>
Tested-by: NPetr Mladek <pmladek@suse.com>
Signed-off-by: NAaron Tomlin <atomlin@redhat.com>
Signed-off-by: NLuis Chamberlain <mcgrof@kernel.org>