[coreboot] [PATCH] Kconfig dependencies for USBDEBUG

[Peter Stuge]

Uwe Hermann wrote:
> Only show the USB Debug Port kconfig option to the user if a mainboard
> is selected that uses a chipset which actually has that functionality _and_
> we have code to initialize the Debug Port in coreboot (for that chipset).
> 
> Also, remove duplicate list of PCI IDs and just link to the wiki page at:
> 
>  http://www.coreboot.org/EHCI_Debug_Port
> 
> The list is now less useful in the kconfig help as this option will only
> appear for those boards where it's actually supported.
> 
> Signed-off-by: Uwe Hermann <uwe at hermann-uwe.de>

Maybe mention the Net20DC in the help text too.

Acked-by: Peter Stuge <peter at stuge.se>