e1000e: refactor PHY ID detection workaround

The workaround that detects the correct PHY ID when an initial read of the
PHY ID registers returns an invalid one should retry up to ten times with
a small delay between attempts using a single PHY address and then repeat
using the remaining possible PHY addresses.  Do this instead of trying each
possible PHY address repeating that up to 100 times.

Signed-off-by: Bruce Allan <[email protected]>
Signed-off-by: Jeff Kirsher <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

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