I previously refered to minigzip from libz which copies all trailing
data to the output when decompressing. However, gzip, on the other
hand, drop trailing garbage by default. Consider ZIMAGE append
the kernel size with zero padding, we should drop trailing garbage
as well.
It turns out that decompressing and recompressing the kernel is enough to break booting on many devices that use MT6763.
Fix#5124, fix#6204, fix#6566
Co-authored-by: LoveSy <shana@zju.edu.cn>
Co-authored-by: 南宫雪珊 <vvb2060@gmail.com>
