move arch-specific internal headers into place

src/internal/clone.h

-#define CLONE_VM      0x00000100
-#define CLONE_FS      0x00000200
-#define CLONE_FILES   0x00000400
-#define CLONE_SIGHAND 0x00000800
-#define CLONE_PTRACE  0x00002000
-#define CLONE_VFORK   0x00004000
-#define CLONE_PARENT  0x00008000
-#define CLONE_THREAD  0x00010000
-#define CLONE_NEWNS   0x00020000
-#define CLONE_SYSVSEM 0x00040000
-#define CLONE_SETTLS  0x00080000
-#define CLONE_PARENT_SETTID 0x00100000
-#define CLONE_CHILD_CLEARTID 0x00200000
-#define CLONE_DETACHED 0x00400000
-#define CLONE_UNTRACED 0x00800000
-#define CLONE_CHILD_SETTID 0x01000000
-#define CLONE_NEWUTS	0x04000000
-#define CLONE_NEWIPC	0x08000000
-#define CLONE_NEWUSER	0x10000000
-#define CLONE_NEWPID	0x20000000
-#define CLONE_NEWNET	0x40000000
-#define CLONE_IO	0x80000000

src/internal/util.h

-#ifndef _INTERNAL_UTIL_H
-#define _INTERNAL_UTIL_H
-
-
-#endif