ar71xx: Add TL-WR841N/ND v11 support

This patch adds support for the TP-Link TL-WR841N/ND to trunk. It is
similar to the already supported v10 - see [1]. I have added support
based on that topic; in the meantime it has been confirmed working
(see the forum thread, and also [2]).

Signed-off by Stijn Segers <francesco.borromini@inventati.org>

[1]: https://forum.openwrt.org/viewtopic.php?id=61309
[2]: https://forum.openwrt.org/viewtopic.php?id=63657

SVN-Revision: 49099

target/linux/ar71xx/image/Makefile

@@ -850,6 +850,13 @@ define Device/tl-wr841-v10
     TPLINK_HWID := 0x08410010
 endef
 
+define Device/tl-wr841-v11
+   $(Device/tplink-4mlzma)
+   BOARDNAME := TL-WR841N-v9
+   DEVICE_PROFILE := TLWR841
+   TPLINK_HWID := 0x08410011
+endef
+
 define Device/tl-wr842n-v1
     $(Device/tplink-8m)
     BOARDNAME := TL-MR3420
@@ -877,7 +884,7 @@ define Device/tl-wr847n-v8
     DEVICE_PROFILE := TLWR841
     TPLINK_HWID := 0x08470008
 endef
-TARGET_DEVICES += tl-wr841-v1.5 tl-wr841-v3 tl-wr841-v5 tl-wr841-v7 tl-wr841-v8 tl-wr841-v9 tl-wr841-v10 tl-wr842n-v1 tl-wr842n-v2 tl-wr843nd-v1 tl-wr847n-v8
+TARGET_DEVICES += tl-wr841-v1.5 tl-wr841-v3 tl-wr841-v5 tl-wr841-v7 tl-wr841-v8 tl-wr841-v9 tl-wr841-v10 tl-wr841-v11 tl-wr842n-v1 tl-wr842n-v2 tl-wr843nd-v1 tl-wr847n-v8
 
 define Device/tl-wr941nd-v2
     $(Device/tplink-4m)