Make struct boot_params a real structure, and remove obsolete fields

Make struct boot_params a real structure, and remove the handling of
some obsolete fields, in particular hd*_info, which was only used by
the ST-506 driver, and likely to be wrong for that driver on any
modern BIOS.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/asm-x86_64/bootparam.h b/include/asm-x86_64/bootparam.h
new file mode 100644
index 0000000..aa82e52
--- /dev/null
+++ b/include/asm-x86_64/bootparam.h
@@ -0,0 +1 @@
+#include <asm-i386/bootparam.h>