[PATCH] uml: add asm/irqflags.h

From: Jeff Dike <[e-mail]>

Add an empty asm/irqflags.h, which seems to satisfy the lock validator enough
that UML builds.

Signed-off-by: Jeff Dike <[e-mail]>
Cc: Paolo 'Blaisorblade' Giarrusso <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

include/asm-um/irqflags.h

···
+#ifndef __UM_IRQFLAGS_H
+#define __UM_IRQFLAGS_H
+
+/* Empty for now */
+
+#endif