e1000e: Reset 82577/82578 PHY before first PHY register read

e1000e: Reset 82577/82578 PHY before first PHY register read

commit 627c8a041f7aaaea93c766f69bd61d952a277586 upstream.

Reset the PHY before first accessing it.  Doing so, ensure that the PHY is
in a known good state before we read/write PHY registers. This fixes a
driver probe failure.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>