Function sys_faccessat 

pub fn sys_faccessat(
    _abi: &mut LinuxRiscv64Abi,
    trapframe: &mut Trapframe,
) -> usize

Linux sys_faccessat implementation (dummy: always returns 0)

Arguments:

• abi: LinuxRiscv64Abi context
• trapframe: Trapframe containing syscall arguments

Returns:

• 0 (success)