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/at91sam9g10ek_nandflash_defconfig b/configs/at91sam9g10ek_nandflash_defconfig
index bf66760..0e3d0b1 100644
--- a/configs/at91sam9g10ek_nandflash_defconfig
+++ b/configs/at91sam9g10ek_nandflash_defconfig
@@ -60,3 +60,6 @@
 CONFIG_SPI=y
 CONFIG_DM_SPI=y
 CONFIG_USB=y
+CONFIG_SYS_USB_OHCI_SLOT_NAME="at91sam9261"
+CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS=2
+CONFIG_USB_ATMEL=y