kernel: precise trigger timing of post-fs-data (#118)

* kernel: add report_event cmd

* ksud: report event

* kernel: trigger on_post_fs_data

* ksud: comment unused code

* [skip ci] run clang-format

Signed-off-by: Ylarod <me@ylarod.cn>

* ci: use custom key to sign official bootimgs

* format ksud

* reject non root

* remove

Signed-off-by: Ylarod <me@ylarod.cn>

userspace/ksud/Cargo.lock

@@ -445,6 +445,7 @@ dependencies = [
  "env_logger",
  "humansize",
  "java-properties",
+ "libc",
  "log",
  "regex",
  "retry",