ARM: at91: add ioremap_registers entry point to soc setup

this will allow to ioremap the register of the PIT, PMC and others
and make the code soc independent

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>

arch/arm/mach-at91/soc.h

@@ -7,6 +7,7 @@
 struct at91_init_soc {
 	unsigned int *default_irq_priority;
 	void (*map_io)(void);
+	void (*ioremap_registers)(void);
 	void (*register_clocks)(void);
 	void (*init)(void);
 };