[Hardy, Intrepid] r8169: Add correct support for 8101E/8102E cards

[Stefan Bader]

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/326891

SRU justification:

Impact: This was reported as a regression against Intrepid. The change that 
most likely caused this was a fix (which was now asked for Hardy by another 
user) to remove access to a certain register for cards other than 8169. 
Unfortunately the code uses in some cases the PCI information but in other 
cases the MAC version to decide how to handle a card. For those cards in 
question the 8101 code is used to initialize the cards hardware but for other 
aspects the unknown MAC causes it to be handled as a 8169 card.
The fact that those cards worked before seems to be pure luck.

Fix: The following 5 patches taken from upstream adds proper support for those 
cards.

Testcase: Networking was impossible before and has been verified to be working 
after by 2 users.

-- 

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