[openwrt/openwrt] ramips: disable build TP-Link EAP235-Wall

[LEDE Commits]

robimarko pushed a commit to openwrt/openwrt.git, branch main:
https://git.openwrt.org/2cce634a9e63d25cd23ab30e86263eed3bce4f3e

commit 2cce634a9e63d25cd23ab30e86263eed3bce4f3e
Author: Shiji Yang <yangshiji66 at outlook.com>
AuthorDate: Sun Oct 26 17:30:29 2025 +0800

    ramips: disable build TP-Link EAP235-Wall
    
    After investigating the EAP235-Wall u-boot GPL code, it was found that
    the u-boot of this device directly loads the kernel from the SPI NOR
    Flash direct access address. However, due to hardware limitation, MT7621
    can only remap the first 4MiB Flash. Excluding some partitions before
    the kernel, this device can only boot kernels smaller than 0x360000.
    This means that unless you install a modified bootloader, the mainline
    OpenWrt will no longer work on this model.
    
    Closes: https://github.com/openwrt/openwrt/issues/20500
    Signed-off-by: Shiji Yang <yangshiji66 at outlook.com>
    Link: https://github.com/openwrt/openwrt/pull/20509
    Signed-off-by: Robert Marko <robimarko at gmail.com>
---
 target/linux/ramips/image/mt7621.mk | 1 +
 1 file changed, 1 insertion(+)

diff --git a/target/linux/ramips/image/mt7621.mk b/target/linux/ramips/image/mt7621.mk
index 9bbee68f6b..a957b5721e 100644
--- a/target/linux/ramips/image/mt7621.mk
+++ b/target/linux/ramips/image/mt7621.mk
@@ -2910,6 +2910,7 @@ define Device/tplink_eap235-wall-v1
   IMAGE_SIZE := 13440k
   IMAGE/factory.bin := append-rootfs | tplink-safeloader factory | \
 	pad-extra 128
+  DEFAULT := n
 endef
 TARGET_DEVICES += tplink_eap235-wall-v1