[source] ramips: fix WHR-1166D WAN port

[LEDE Commits]

mkresin pushed a commit to source.git, branch lede-17.01:
https://git.lede-project.org/ff414fb575a43ada264186fe74e57fb605f20b7f

commit ff414fb575a43ada264186fe74e57fb605f20b7f
Author: Mathias Kresin <dev at kresin.me>
AuthorDate: Wed Aug 9 20:17:43 2017 +0200

    ramips: fix WHR-1166D WAN port
    
    By adding the ICPlus IP1001 phy driver an already set RGMII delay mode
    is reset during driver load.
    
    Set the rgmii rx delay to fix corrupt/no packages in case the WAN port
    negotiates to 1000MBit.
    
    Fixes: FS#670
    
    Signed-off-by: Mathias Kresin <dev at kresin.me>
---
 target/linux/ramips/dts/WHR-1166D.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target/linux/ramips/dts/WHR-1166D.dts b/target/linux/ramips/dts/WHR-1166D.dts
index 643729c..66fcc9b 100644
--- a/target/linux/ramips/dts/WHR-1166D.dts
+++ b/target/linux/ramips/dts/WHR-1166D.dts
@@ -144,7 +144,7 @@
 
 		phy5: ethernet-phy at 5 {
 			reg = <5>;
-			phy-mode = "rgmii";
+			phy-mode = "rgmii-rxid";
 		};
 	};
 };