um: take system.h out of shared/sysdep

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>

arch/um/include/asm/system.h → arch/um/include/asm/system-um.h

 #ifndef __UM_SYSTEM_GENERIC_H
 #define __UM_SYSTEM_GENERIC_H
 
-#include "sysdep/system.h"
-
 extern int get_signals(void);
 extern int set_signals(int enable);
 extern void block_signals(void);

arch/um/sys-x86/shared/sysdep/system.h → arch/um/sys-x86/asm/system.h

@@ -6,6 +6,7 @@
 #include <asm/cpufeature.h>
 #include <asm/cmpxchg.h>
 #include <asm/nops.h>
+#include <asm/system-um.h>
 
 #include <linux/kernel.h>
 #include <linux/irqflags.h>