MXC: rename mxc_map_io to architecture specific versions

This allows us to have more mapping functions for more than one
i.MX architecture in the kernel. As this is the earliest board
specific hook we have, also use it to set the cpu type.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

arch/arm/mach-mx3/mm.c

@@ -72,8 +72,17 @@ static struct map_desc mxc_io_desc[] __initdata = {
  * system startup to create static physical to virtual memory mappings
  * for the IO modules.
  */
-void __init mxc_map_io(void)
+void __init mx31_map_io(void)
 {
+	mxc_set_cpu_type(MXC_CPU_MX31);
+
+	iotable_init(mxc_io_desc, ARRAY_SIZE(mxc_io_desc));
+}
+
+void __init mx35_map_io(void)
+{
+	mxc_set_cpu_type(MXC_CPU_MX35);
+
 	iotable_init(mxc_io_desc, ARRAY_SIZE(mxc_io_desc));
 }