How to increasee kernel partition size?

I updateed to master after current image (W2914NS v2) but only initramfs works, squishfs image failed to boot. (uboot faild to decompress lzma format
decreasee squishfs block size to 64kb to make it different error, Failed to find mtk,mt7621-sysc node
Failed to find mtk,mt7621-sysc node
it feels like I met a wall on kernel size limit, as removeing mt76 and other kernal extensions make it boot but is there a way to bypass that?

May be solved by using lzma-loader.
Some other mt7621 devices also faced the same issue and have been modified to use it.

diff --git a/target/linux/ramips/image/ b/target/linux/ramips/image/
index d530d5ad3e..d9ff415d4c 100644
--- a/target/linux/ramips/image/
+++ b/target/linux/ramips/image/
@@ -1196,6 +1196,7 @@ TARGET_DEVICES += wevo_11acnas

 define Device/wevo_w2914ns-v2
+  $(Device/uimage-lzma-loader)
   IMAGE_SIZE := 16064k
   UIMAGE_NAME := W2914NS-V2(0.0.0)