arm64: dts: meson: p241: add vcc_5v regulator

Add the VCC_5V regulator, which feeds the HDMI, USB and audio amplifier.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/20211130100159.214489-2-jbrunet@baylibre.com