ARM: cns3xxx: Add architecture definition for EHCI/OHCI controller

This patch add plateform_device for EHCI and OHCI controller on CNS3XXX.
Power reference count (usb_pwr_ref) is used to control enabling and
disabling the single clock control for both EHCI and OHCI controller.

It also removes EHCI/OHCI unused virtual address definitions.

Signed-off-by: Mac Lin <mkl0301@gmail.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>

arch/arm/mach-cns3xxx/pm.c

@@ -10,6 +10,7 @@
 #include <linux/module.h>
 #include <linux/io.h>
 #include <linux/delay.h>
+#include <asm/atomic.h>
 #include <mach/system.h>
 #include <mach/cns3xxx.h>
 #include <mach/pm.h>
@@ -118,3 +119,6 @@ int cns3xxx_cpu_clock(void)
 	return cpu;
 }
 EXPORT_SYMBOL(cns3xxx_cpu_clock);
+
+atomic_t usb_pwr_ref = ATOMIC_INIT(0);
+EXPORT_SYMBOL(usb_pwr_ref);