consolidate io_remap_pfn_range definitions

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

arch/sparc/include/asm/pgtable_32.h

@@ -443,6 +443,7 @@ static inline int io_remap_pfn_range(struct vm_area_struct *vma,
 
 	return remap_pfn_range(vma, from, phys_base >> PAGE_SHIFT, size, prot);
 }
+#define io_remap_pfn_range io_remap_pfn_range 
 
 #define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS
 #define ptep_set_access_flags(__vma, __address, __ptep, __entry, __dirty) \