Allow sysmap to be used on non CONFIG_ALL_PPC

diff -Nru a/arch/ppc/mm/init.c b/arch/ppc/mm/init.c
@@ -581,9 +581,6 @@
 	/* remove the RTAS pages from the available memory */
 	if (rtas_data)
 		mem_pieces_remove(&phys_avail, rtas_data, rtas_size, 1);
-	/* remove the sysmap pages from the available memory */
-	if (sysmap)
-		mem_pieces_remove(&phys_avail, __pa(sysmap), sysmap_size, 1);
 	/* Because of some uninorth weirdness, we need a page of
 	 * memory as high as possible (it must be outside of the
 	 * bus address seen as the AGP aperture). It will be used

@@ -599,6 +596,9 @@
 		agp_special_page = (unsigned long)__va(agp_special_page);
 	}
 #endif /* CONFIG_ALL_PPC */
+	/* remove the sysmap pages from the available memory */
+	if (sysmap)
+		mem_pieces_remove(&phys_avail, __pa(sysmap), sysmap_size, 1);
 }
 
 /* Mark some memory as reserved by removing it from phys_avail. */