ARM64: dts: meson-gxl-nexbox-a95x: enable the USB controller

ARM64: dts: meson-gxl-nexbox-a95x: enable the USB controller

BugLink: http://bugs.launchpad.net/bugs/1794889
[ Upstream commit 55ef32249bb647c6b64adcf943918d302a0020a7 ]

The Nexbox A95X provides two USB ports. Enable the SoC's USB controller
on this board to make these USB ports usable.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>