kernel: add try_umount /system_ext and fmt

Follow KernelSU upstreams.

Signed-off-by: rsuntk <rissu.ntk@gmail.com>

kernel: Always return 1 if CONFIG_KSU_CMDLINE disabled

Avoid potentially undeclared function

Signed-off-by: rsuntk <rissu.ntk@gmail.com>

ksud: make clippy happy

ksud: fmt

Signed-off-by: rsuntk <rissu.ntk@gmail.com>

ksud: update dependencies

Signed-off-by: rsuntk <rissu.ntk@gmail.com>

manager: Create a new root shell for action.sh to avoid blocking the global root shell.

kernel: Do not compile if UH, KDP and RKP enabled

UH, a kernel hypervisor driver that prevent any root permission.
If KernelSU driver was compiled with UH active, phone will freeze.

Need an accurate way to detect Samsung kernel, but currently we
depends on "drivers/samsung".

The reason why we don't put this on Kconfig is due to compatibility issue
with other OEMs.

Signed-off-by: rsuntk <rissu.ntk@gmail.com>

ksud: magic_mount: Fix stat

Follow https://github.com/5ec1cff/KernelSU/commit/10ec4e9c0b94b3380938b695cff0d9e8790c5715 upstream

Signed-off-by: rsuntk <rissu.ntk@gmail.com>

kernel: throne_tracker: clear apk_path_hash_list every fucking time

re-initialize / empty this for fresh processing

kernel: refine some and relabel them correctly

1. We checks for CONFIG_KDP_CRED inside kernel/cred.c
2. If we got CONFIG_KDP_CRED, grep command will return 0
3. Then we do another checks inside kernel_compat.c
4. If UH, RKP and KDP are enabled, stop the compilation immedietly.

- We should not checks is it a samsung kernel or no, just
checks the UH drivers, since KDP and RKP is depends on it.
- Give an advise to kernel dev to remove all UH drivers (not hooks).

Signed-off-by: rsuntk <rissu.ntk@gmail.com>

kernel: refine get_ksu_state()

Using int for get_ksu_state is not effective.
Instead we should use boolean value instead because its more easy
and simple things up.

get_ksu_state() will return true if enable_kernelsu greater or equal than 1.
and return false if enable_kernelsu less than 1.

previously:
if (get_ksu_state() < 1)

now:
if (!get_ksu_state())

Signed-off-by: rsuntk <rissu.ntk@gmail.com>