- minimal built initramfs: 11MB vmlinux ELF -> 4.5MB vmlinuz
- ~5 seconds for kernel decompression, which was equivalent to the
additional time to load the uncompressed ELF from SPI NOR.
- Removes requirement for lzma-loader, which may have been causing some
image builds to fail to boot on Mikrotik mt7621.
Fixes: FS#3354
Suggested-by: Thibaut VARÈNE <hacks@slashdirt.org>
Signed-off-by: John Thomson <git@johnthomson.fastmail.com.au>