cygwin: add asm/bitsperlong.h, dummy asm/posix_types.h headers

These changes are necessary for cross-compiling the Linux kernel.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>

winsup/cygwin/include/asm/bitsperlong.h

@@ -0,0 +1,18 @@
+/* asm/bitsperlong.h
+
+This file is part of Cygwin.
+
+This software is a copyrighted work licensed under the terms of the
+Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
+details. */
+
+#ifndef __ASM_BITSPERLONG_H
+#define __ASM_BITSPERLONG_H
+
+#ifdef __x86_64__
+#define __BITS_PER_LONG 64
+#else
+#define __BITS_PER_LONG 32
+#endif
+
+#endif /* __ASM_BITSPERLONG_H */

winsup/cygwin/include/asm/posix_types.h

@@ -0,0 +1,14 @@
+/* asm/posix_types.h
+
+This file is part of Cygwin.
+
+This software is a copyrighted work licensed under the terms of the
+Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
+details. */
+
+#ifndef _ASM_POSIX_TYPES_H
+#define _ASM_POSIX_TYPES_H
+
+/* This is just a placeholder to simplify cross-compiling the Linux kernel */
+
+#endif /* _ASM_POSIX_TYPES_H */

winsup/cygwin/include/asm/types.h

@@ -9,6 +9,8 @@ details. */
 #ifndef _ASM_TYPES_H
 #define _ASM_TYPES_H
 
+#include <asm/bitsperlong.h>
+
 typedef __signed__ char __s8;
 typedef unsigned char __u8;