r8169: fix the reset setting for 8111evl

rtl8111evl should stop any TLP requirement before resetting by
enabling register 0x37 bit 7.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c
index 02339b3..a1c9070 100644
--- a/drivers/net/r8169.c
+++ b/drivers/net/r8169.c
@@ -3988,6 +3988,7 @@
 		while (RTL_R8(TxPoll) & NPQ)
 			udelay(20);
 	} else if (tp->mac_version == RTL_GIGA_MAC_VER_34) {
+		RTL_W8(ChipCmd, RTL_R8(ChipCmd) | StopReq);
 		while (!(RTL_R32(TxConfig) & TXCFG_EMPTY))
 			udelay(100);
 	} else {