ARM: ux500: rename ux500_map_io

This function is not mapping any I/O other than for probing
the chip ID. Rename it to make the function graspable.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

arch/arm/mach-ux500/cpu-db8500.c

@@ -46,7 +46,7 @@ static struct prcmu_pdata db8500_prcmu_pdata = {
 static void __init u8500_map_io(void)
 {
 	debug_ll_io_init();
-	ux500_map_io();
+	ux500_setup_id();
 }
 
 /*

arch/arm/mach-ux500/id.c

@@ -72,7 +72,7 @@ static unsigned int partnumber(unsigned int asicid)
  * DB9540	0x413fc090	0xFFFFDBF4		0x009540xx
  */
 
-void __init ux500_map_io(void)
+void __init ux500_setup_id(void)
 {
 	unsigned int cpuid = read_cpuid_id();
 	unsigned int asicid = 0;

arch/arm/mach-ux500/setup.h

@@ -18,7 +18,7 @@
 
 void ux500_restart(enum reboot_mode mode, const char *cmd);
 
-void __init ux500_map_io(void);
+void __init ux500_setup_id(void);
 
 extern void __init ux500_init_irq(void);