[refactor] Unified syscall interface

[AsakuraMizu]

Currently, the unique signatures for each system call implementation are all handwritten. Then, a handwritten dispatch and type conversion process is required. Furthermore, the logging is messy. Consider using code generation methods to automate these processes.

References:

• syscall_trace in Undefined OS made by @eternalcomet
• https://github.com/asterinas/asterinas/blob/main/kernel/src/syscall/mod.rs
• https://github.com/DragonOS-Community/DragonOS/blob/master/kernel/src/syscall/table.rs

[AsakuraMizu]

Now a new problem has arisen. In #61, we patched syscalls crate because its code generation had issues. We also considered using tools like https://github.com/mebeim/systrack, or directly parsing data from https://syscalls.mebeim.net, but its problem is that it doesn't yet support loongarch.