arch: arm64: dts: meson: a1: add assigned-clocks for usb node

arch: arm64: dts: meson: a1: add assigned-clocks for usb node

To ensure proper functionality of USB, it is necessary to use
the rate of 64000000 for CLKID_USB_BUS. For instance, adb may
not function correctly without this setting. This information
has been derived from the vendor SDK.

Signed-off-by: Alexey Romanov <avromanov@salutedevices.com>
Signed-off-by: Dmitry Rokosov <ddrokosov@salutedevices.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20240124130623.3471236-1-avromanov@salutedevices.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>