[IA64] move ioremap/ioremap_nocache under __KERNEL__

I noticed these are declared extern outside of __KERNEL__, but surely
they wouldn't be available to userland since they're defined in
ioremap.c. Am I missing something here?

If I'm right about this, then there's probably a good deal of other
stuff in io.h that could move inside __KERNEL__, but at least this is
a start.

Signed-off-by: Aron Griffis <[e-mail]>
Signed-off-by: Tony Luck <[e-mail]>

include/asm-ia64/io.h

···
 # define outl_p		outl
 #endif
 
+# ifdef __KERNEL__
+
 extern void __iomem * ioremap(unsigned long offset, unsigned long size);
 extern void __iomem * ioremap_nocache (unsigned long offset, unsigned long size);
 
···
 #define dmi_ioremap ioremap
 #define dmi_iounmap(x,l) iounmap(x)
 #define dmi_alloc(l) kmalloc(l, GFP_ATOMIC)
-
-# ifdef __KERNEL__
 
 /*
  * String version of IO memory access ops: