[RFA]: Document linker specific options for 68HC11/HC12

[Nick Clifton]

Hi Stephane,

> 2004-08-01  Stephane Carrez  <stcarrez@nerim.fr>
> 
>     * ld.texinfo (Top): Document specific options of 68HC11 and 68HC12.

Approved - please apply.

Cheers
   Nick