sparc: move page_to_phys to page.h

Preparation for introducing asm-generic/io.h this move was required.
In asm-generic page_to_phys is placed in page.h - so do the same here.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

arch/sparc/include/asm/io_32.h

@@ -8,8 +8,6 @@
 #include <asm/page.h>      /* IO address mapping routines need this */
 #include <asm-generic/pci_iomap.h>
 
-#define page_to_phys(page)	(page_to_pfn(page) << PAGE_SHIFT)
-
 static inline u32 flip_dword (u32 l)
 {
 	return ((l&0xff)<<24) | (((l>>8)&0xff)<<16) | (((l>>16)&0xff)<<8)| ((l>>24)&0xff);

arch/sparc/include/asm/io_64.h

@@ -15,7 +15,6 @@
 
 /* BIO layer definitions. */
 extern unsigned long kern_base, kern_size;
-#define page_to_phys(page)	(page_to_pfn(page) << PAGE_SHIFT)
 
 static inline u8 _inb(unsigned long addr)
 {

arch/sparc/include/asm/page.h

 #ifndef ___ASM_SPARC_PAGE_H
 #define ___ASM_SPARC_PAGE_H
+
+#define page_to_phys(page)	(page_to_pfn(page) << PAGE_SHIFT)
+
 #if defined(__sparc__) && defined(__arch64__)
 #include <asm/page_64.h>
 #else