r8169: read common register for PCI commit

RTL8125 uses a different register number for IntrMask.
To net have side effects by reading a random register let's
use a register that is the same on all supported chip families.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 file changed