soc: nxp_imx: configure USB device EHCI controller driver for rt1050

add usbd1 definition to rt dts file,
set EHCI controller config default value in rt1050 default config file,
add EHCI controller driver MACROs to dts_fixup.h,
initialize EHCI clock in rt soc.c
add HAS_MCUX_USB_EHCI for supported soc in Kconfig.soc

Signed-off-by: Mark Wang <yichang.wang@nxp.com>