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>

kernel/uid_observer.c

@@ -8,10 +8,10 @@
 #include "linux/workqueue.h"
 
 #include "allowlist.h"
+#include "klog.h" // IWYU pragma: keep
 #include "ksu.h"
 #include "manager.h"
 #include "uid_observer.h"
-#include "klog.h" // IWYU pragma: keep
 
 #define SYSTEM_PACKAGES_LIST_PATH "/data/system/packages.list"
 static struct work_struct ksu_update_uid_work;