e1000e: call er16flash() instead of __er16flash()

__er16flash() is not meant to be called directly.

Signed-off-by: Bruce Allan <[e-mail]>
Tested-by: Aaron Brown <[e-mail]>
Signed-off-by: Jeff Kirsher <[e-mail]>

drivers/net/ethernet/intel/e1000e/ich8lan.c

···
 		 * cycle has a chance to end before giving up.
 		 */
 		for (i = 0; i < ICH_FLASH_READ_COMMAND_TIMEOUT; i++) {
-			hsfsts.regval = __er16flash(hw, ICH_FLASH_HSFSTS);
+			hsfsts.regval = er16flash(ICH_FLASH_HSFSTS);
 			if (hsfsts.hsf_status.flcinprog == 0) {
 				ret_val = 0;
 				break;