reset: add driver for lpc18xx rgu

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
lpc18xx.dtsi: add clks for rgu

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
lpc18xx.dtsi: add usb otg phy for usb0

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
lpc18xx.dtsi: add clocks for usb oth phy

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
usb: echi: add driver for lpc18xx

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
lpc18xx.dtsi: add usb0 node

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
lpc18xx.dtsi: add usb0 clock

Signed-off-by: Joachim Eastwood <manabian@gmail.com>