bnx2x: fix a power state test

If PCIe supports PM capabilities, bnx2x will always claim eeprom is accessible
as PCI_D0 is zero.
Reported-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NYuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: NAriel Elior <ariele@broadcom.com>
Signed-off-by: NEilon Greenstein <eilong@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c

@@ -1390,7 +1390,8 @@ static bool bnx2x_is_nvm_accessible(struct bnx2x *bp)
 		rc = pci_read_config_word(bp->pdev,
 					  bp->pm_cap + PCI_PM_CTRL, &pm);
 
-	if ((rc && !netif_running(dev)) || (!rc && ((pm & PCI_D0) != PCI_D0)))
+	if ((rc && !netif_running(dev)) ||
+	    (!rc && ((pm & PCI_PM_CTRL_STATE_MASK) != PCI_D0)))
 		return false;
 
 	return true;