module: in layout_sections, move_module: add the modname

layout_sections() and move_module() each issue ~50 messages for each
module loaded.  Add mod-name into their 2 header lines, to help the
reader find his module.

no functional changes.

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>