ar71xx: avoid double lzma compression of kernel for SEAMA images

Use relocation loader instead of lzma loader.

Tested on D-Link DIR-869 A1.

Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>

target/linux/ar71xx/image/generic.mk

@@ -485,7 +485,7 @@ define Device/seama
   CONSOLE := ttyS0,115200
   LOADER_TYPE := bin
   BLOCKSIZE := 64k
-  KERNEL := kernel-bin | lzma | loader-kernel-cmdline | lzma
+  KERNEL := kernel-bin | patch-cmdline | relocate-kernel | lzma
   KERNEL_INITRAMFS := kernel-bin | patch-cmdline | lzma | seama
   KERNEL_INITRAMFS_SUFFIX = $$(KERNEL_SUFFIX).seama
   IMAGES := sysupgrade.bin factory.bin