[openwrt/openwrt] ramips: update MAC address configuration for Buffalo WCR-1166DS

[LEDE Commits]

hauke pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/770cfe9bffbe53fc9c3802041e0c1b1fda8fc015

commit 770cfe9bffbe53fc9c3802041e0c1b1fda8fc015
Author: INAGAKI Hiroshi <musashino.open at gmail.com>
AuthorDate: Sat Jan 9 13:24:37 2021 +0900

    ramips: update MAC address configuration for Buffalo WCR-1166DS
    
    This patch converts MAC address configuration of Buffalo WCR-1166DS in
    02_network to use the generic function of OpenWrt. And also, add
    label_mac.
    
    Signed-off-by: INAGAKI Hiroshi <musashino.open at gmail.com>
---
 target/linux/ramips/mt76x8/base-files/etc/board.d/02_network | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/target/linux/ramips/mt76x8/base-files/etc/board.d/02_network b/target/linux/ramips/mt76x8/base-files/etc/board.d/02_network
index ab068ce150..00fb88aa3c 100644
--- a/target/linux/ramips/mt76x8/base-files/etc/board.d/02_network
+++ b/target/linux/ramips/mt76x8/base-files/etc/board.d/02_network
@@ -177,9 +177,9 @@ ramips_setup_macs()
 
 	case $board in
 	buffalo,wcr-1166ds)
-		local index="$(find_mtd_index "board_data")"
-		wan_mac="$(grep -m1 mac= "/dev/mtd${index}" | cut -d= -f2)"
+		wan_mac=$(mtd_get_mac_ascii board_data "mac")
 		lan_mac=$wan_mac
+		label_mac=$wan_mac
 		;;
 	cudy,wr1000|\
 	hilink,hlk-7628n|\