[openwrt/openwrt] rockchip: add `"compat_version": "1.1"` for Radxa E52C

[LEDE Commits]

robimarko pushed a commit to openwrt/openwrt.git, branch openwrt-25.12:
https://git.openwrt.org/c9e2d8191b4c5349491536a2fe4b1bfa83b43d33

commit c9e2d8191b4c5349491536a2fe4b1bfa83b43d33
Author: FUKAUMI Naoki <naoki at radxa.com>
AuthorDate: Wed Jan 14 01:52:55 2026 +0000

    rockchip: add `"compat_version": "1.1"` for Radxa E52C
    
    This is something I missed in https://github.com/openwrt/openwrt/pull/20608
    
    Fixes: 1f1db75432 ("rockchip: make NIC name predictable for Radxa E52C/ROCK 5 ITX/ROCK 5T")
    Signed-off-by: FUKAUMI Naoki <naoki at radxa.com>
    Link: https://github.com/openwrt/openwrt/pull/21533
    Signed-off-by: Robert Marko <robimarko at gmail.com>
    (cherry picked from commit 43039157babc7262180cdd56994732ca1ebbb6fd)
---
 .../armv8/base-files/etc/board.d/05_compat-version        | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/target/linux/rockchip/armv8/base-files/etc/board.d/05_compat-version b/target/linux/rockchip/armv8/base-files/etc/board.d/05_compat-version
new file mode 100644
index 0000000000..eaa00c7ac4
--- /dev/null
+++ b/target/linux/rockchip/armv8/base-files/etc/board.d/05_compat-version
@@ -0,0 +1,15 @@
+. /lib/functions.sh
+. /lib/functions/uci-defaults.sh
+
+board="$(board_name)"
+board_config_update
+
+case "$board" in
+radxa,e52c)
+	ucidef_set_compat_version "1.1"
+	;;
+esac
+
+board_config_flush
+
+exit 0