[openwrt/openwrt] realtek rtl931x: mark subtarget as source-only

[LEDE Commits]

robimarko pushed a commit to openwrt/openwrt.git, branch main:
https://git.openwrt.org/ffde9a9fe9adcb028ab1b39ae0728bfffe4ec304

commit ffde9a9fe9adcb028ab1b39ae0728bfffe4ec304
Author: Shiji Yang <yangshiji66 at outlook.com>
AuthorDate: Fri May 9 22:12:11 2025 +0800

    realtek rtl931x: mark subtarget as source-only
    
    There are no supported devices on this sub-target. It can be
    considered that it is still under development. Therefore,
    there is no need to make the buildbot build it every day.
    
    Signed-off-by: Shiji Yang <yangshiji66 at outlook.com>
    Link: https://github.com/openwrt/openwrt/pull/18757
    Signed-off-by: Robert Marko <robimarko at gmail.com>
---
 target/linux/realtek/rtl931x/target.mk | 1 +
 1 file changed, 1 insertion(+)

diff --git a/target/linux/realtek/rtl931x/target.mk b/target/linux/realtek/rtl931x/target.mk
index eaa6b61214..62e88b41c6 100644
--- a/target/linux/realtek/rtl931x/target.mk
+++ b/target/linux/realtek/rtl931x/target.mk
@@ -4,6 +4,7 @@ SUBTARGET:=rtl931x
 CPU_TYPE:=24kc
 BOARD:=realtek
 BOARDNAME:=Realtek MIPS RTL931X
+FEATURES+=source-only
 
 define Target/Description
 	Build firmware images for Realtek RTL931x based boards.