Convert CONFIG_USB_OHCI_NEW et al to Kconfig

This converts the following to Kconfig:
    CONFIG_SYS_OHCI_SWAP_REG_ACCESS
    CONFIG_SYS_USB_OHCI_CPU_INIT
    CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS
    CONFIG_SYS_USB_OHCI_SLOT_NAME
    CONFIG_USB_ATMEL
    CONFIG_USB_ATMEL_CLK_SEL_PLLB
    CONFIG_USB_ATMEL_CLK_SEL_UPLL
    CONFIG_USB_OHCI_LPC32XX
    CONFIG_USB_OHCI_NEW

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/vexpress_aemv8a_juno_defconfig b/configs/vexpress_aemv8a_juno_defconfig
index ba8883d..792bcf1 100644
--- a/configs/vexpress_aemv8a_juno_defconfig
+++ b/configs/vexpress_aemv8a_juno_defconfig
@@ -35,3 +35,4 @@
 CONFIG_DM_ETH=y
 CONFIG_PCI=y
 CONFIG_USB=y
+CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS=1