clone: move definitions of cloning flags to xlat/

* clone.c: Include <sched.h>.  Move definitions of CLONE_* flags ...
* xlat/clone_flags.in: ... here.
diff --git a/clone.c b/clone.c
index 6c2d196..beb64b2 100644
--- a/clone.c
+++ b/clone.c
@@ -1,32 +1,10 @@
 #include "defs.h"
 
-/* defines copied from linux/sched.h since we can't include that
- * ourselves (it conflicts with *lots* of libc includes)
- */
-#define CSIGNAL         0x000000ff      /* signal mask to be sent at exit */
-#define CLONE_VM        0x00000100      /* set if VM shared between processes */
-#define CLONE_FS        0x00000200      /* set if fs info shared between processes */
-#define CLONE_FILES     0x00000400      /* set if open files shared between processes */
-#define CLONE_SIGHAND   0x00000800      /* set if signal handlers shared */
-#define CLONE_IDLETASK  0x00001000      /* kernel-only flag */
-#define CLONE_PTRACE    0x00002000      /* set if we want to let tracing continue on the child too */
-#define CLONE_VFORK     0x00004000      /* set if the parent wants the child to wake it up on mm_release */
-#define CLONE_PARENT    0x00008000      /* set if we want to have the same parent as the cloner */
-#define CLONE_THREAD	0x00010000	/* Same thread group? */
-#define CLONE_NEWNS	0x00020000	/* New namespace group? */
-#define CLONE_SYSVSEM	0x00040000	/* share system V SEM_UNDO semantics */
-#define CLONE_SETTLS	0x00080000	/* create a new TLS for the child */
-#define CLONE_PARENT_SETTID	0x00100000	/* set the TID in the parent */
-#define CLONE_CHILD_CLEARTID	0x00200000	/* clear the TID in the child */
-#define CLONE_UNTRACED		0x00800000	/* set if the tracing process can't force CLONE_PTRACE on this clone */
-#define CLONE_CHILD_SETTID	0x01000000	/* set the TID in the child */
-#define CLONE_STOPPED		0x02000000	/* Start in stopped state */
-#define CLONE_NEWUTS		0x04000000	/* New utsname group? */
-#define CLONE_NEWIPC		0x08000000	/* New ipcs */
-#define CLONE_NEWUSER		0x10000000	/* New user namespace */
-#define CLONE_NEWPID		0x20000000	/* New pid namespace */
-#define CLONE_NEWNET		0x40000000	/* New network namespace */
-#define CLONE_IO		0x80000000	/* Clone io context */
+#include <sched.h>
+
+#ifndef CSIGNAL
+# define CSIGNAL 0x000000ff
+#endif
 
 #include "xlat/clone_flags.h"
 
diff --git a/xlat/clone_flags.in b/xlat/clone_flags.in
index 1a914b6..8616428 100644
--- a/xlat/clone_flags.in
+++ b/xlat/clone_flags.in
@@ -1,23 +1,23 @@
-CLONE_VM
-CLONE_FS
-CLONE_FILES
-CLONE_SIGHAND
-CLONE_IDLETASK
-CLONE_PTRACE
-CLONE_VFORK
-CLONE_PARENT
-CLONE_THREAD
-CLONE_NEWNS
-CLONE_SYSVSEM
-CLONE_SETTLS
-CLONE_PARENT_SETTID
-CLONE_CHILD_CLEARTID
-CLONE_UNTRACED
-CLONE_CHILD_SETTID
-CLONE_STOPPED
-CLONE_NEWUTS
-CLONE_NEWIPC
-CLONE_NEWUSER
-CLONE_NEWPID
-CLONE_NEWNET
-CLONE_IO
+CLONE_VM	0x00000100
+CLONE_FS	0x00000200
+CLONE_FILES	0x00000400
+CLONE_SIGHAND	0x00000800
+CLONE_IDLETASK	0x00001000
+CLONE_PTRACE	0x00002000
+CLONE_VFORK	0x00004000
+CLONE_PARENT	0x00008000
+CLONE_THREAD	0x00010000
+CLONE_NEWNS	0x00020000
+CLONE_SYSVSEM	0x00040000
+CLONE_SETTLS	0x00080000
+CLONE_PARENT_SETTID	0x00100000
+CLONE_CHILD_CLEARTID	0x00200000
+CLONE_UNTRACED	0x00800000
+CLONE_CHILD_SETTID	0x01000000
+CLONE_STOPPED	0x02000000
+CLONE_NEWUTS	0x04000000
+CLONE_NEWIPC	0x08000000
+CLONE_NEWUSER	0x10000000
+CLONE_NEWPID	0x20000000
+CLONE_NEWNET	0x40000000
+CLONE_IO	0x80000000