PCI: Replace lkml.org, spinics, gmane with lore.kernel.org

The lkml.org, spinics.net, and gmane.org archives are not very reliable
and, in some cases, not even easily accessible.  Replace links to them with
links to lore.kernel.org, the archives hosted by kernel.org.

I found the gmane items via the Wayback Machine archive at
https://web.archive.org/.

Signed-off-by: Bjorn Helgaas <[email protected]>
diff --git a/Documentation/PCI/pci.rst b/Documentation/PCI/pci.rst
index d2815d7..281d8a2 100644
--- a/Documentation/PCI/pci.rst
+++ b/Documentation/PCI/pci.rst
@@ -214,7 +214,7 @@
    problem and unlikely to get fixed soon.
 
    This has been discussed before but not changed as of 2.6.19:
-   http://lkml.org/lkml/2006/3/2/194
+   https://lore.kernel.org/r/[email protected]/
 
 
 pci_set_master() will enable DMA by setting the bus master bit