of/fdt: convert initial_boot_params to opaque pointer

Now that all accesses to FDT header data has been converted to accessor
helpers, initial_boot_params can become an opaque pointer.

Signed-off-by: Rob Herring <[e-mail]>
Tested-by: Michal Simek <[e-mail]>
Tested-by: Grant Likely <[e-mail]>
Tested-by: Stephen Chivers <[e-mail]>

drivers/of/fdt.c

···
 int __initdata dt_root_addr_cells;
 int __initdata dt_root_size_cells;
 
-struct boot_param_header *initial_boot_params;
+void *initial_boot_params;
 
 #ifdef CONFIG_OF_EARLY_FLATTREE
 

include/linux/of_fdt.h

···
 /* TBD: Temporary export of fdt globals - remove when code fully merged */
 extern int __initdata dt_root_addr_cells;
 extern int __initdata dt_root_size_cells;
-extern struct boot_param_header *initial_boot_params;
+extern void *initial_boot_params;
 
 extern char __dtb_start[];
 extern char __dtb_end[];