Wrap the mount_setattr syscall 442

Wrap the mount_setattr syscall 442

int syscall(SYS_mount_setattr, int dirfd, const char *pathname,
           unsigned int flags, struct mount_attr *attr, size_t size);

The mount_setattr() system call changes the mount properties of a
mount or an entire mount tree.  If pathname is a relative pathname,
then it is interpreted relative to the directory referred to by the
file descriptor dirfd.  If dirfd is the special value AT_FDCWD, then
pathname is interpreted relative to the current working directory of
the calling process.  If pathname is the empty string and
AT_EMPTY_PATH is specified in flags, then the mount properties of the
mount identified by dirfd are changed

Declare a mount_setattr wrapper in priv_syswrap-linux.h and hook it
for {amd64,arm,arm64,mips64,ppc32,ppc64,riscv64,s390x,x86}-linux
using LINX_ with PRE handler in syswrap-linux.c

Part of this update also is a fix of the sys_move_mount wrapper.
Specifically there was a typo mount_moce vs. move_mount, and also
there was a problem in handling VKI_AT_FDCWD special fd value in the
check for to_fd and to_pathname.

https://bugs.kde.org/show_bug.cgi?id=509566