[source] ramips: add factory firmware for Tp-Link C20i/C50

[LEDE Commits]

mkresin pushed a commit to source.git, branch lede-17.01:
https://git.lede-project.org/86196830371c07c2b5721002f2ad500ca893076e

commit 86196830371c07c2b5721002f2ad500ca893076e
Author: Henryk Heisig <hyniu at o2.pl>
AuthorDate: Fri May 5 17:07:28 2017 +0200

    ramips: add factory firmware for Tp-Link C20i/C50
    
    TP-Link firmware doesn't accept sysupgrade.bin with metadata.
    
    Signed-off-by: Henryk Heisig <hyniu at o2.pl>
---
 target/linux/ramips/image/mt7620.mk | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/target/linux/ramips/image/mt7620.mk b/target/linux/ramips/image/mt7620.mk
index 42745c4..e27c405 100644
--- a/target/linux/ramips/image/mt7620.mk
+++ b/target/linux/ramips/image/mt7620.mk
@@ -37,7 +37,9 @@ define Device/ArcherC20i
   SUPPORTED_DEVICES := c20i
   KERNEL := $(KERNEL_DTB)
   KERNEL_INITRAMFS := $(KERNEL_DTB) | tplink-header ArcherC20i -c
+  IMAGE/factory.bin := append-kernel | tplink-header ArcherC20i -j
   IMAGE/sysupgrade.bin := append-kernel | tplink-header ArcherC20i -j | append-metadata
+  IMAGES += factory.bin
   DEVICE_TITLE := TP-Link ArcherC20i
 endef
 TARGET_DEVICES += ArcherC20i
@@ -47,7 +49,9 @@ define Device/ArcherC50
   SUPPORTED_DEVICES := c50
   KERNEL := $(KERNEL_DTB)
   KERNEL_INITRAMFS := $(KERNEL_DTB) | tplink-header ArcherC50 -c
+  IMAGE/factory.bin := append-kernel | tplink-header ArcherC50 -j
   IMAGE/sysupgrade.bin := append-kernel | tplink-header ArcherC50 -j | append-metadata
+  IMAGES += factory.bin
   DEVICE_TITLE := TP-Link ArcherC50
 endef
 TARGET_DEVICES += ArcherC50