arm64: meson: add support for libretech-cc v2

Add support for the Amlogic based libretech cc version 2.
As version 1, it is based on the s905x SoC.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
[narmstrong: Fixed libretech-cc.rst bullet points]
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
5 files changed