arm64: dts: allwinner: Use constants for RTC clock indexes

The binding header provides descriptive names for the RTC clock indexes,
since the indexes were arbitrarily chosen by the binding, not by the
hardware. Let's use the names, so the meaning is clearer.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20220607012438.18183-2-samuel@sholland.org

arm64: allwinner: h6: orangepi-lite2: Support BT+WIFI combo module

OrangePi Lite2 has AP6255 BT+WIFI combo chip. Add support for it.

Signed-off-by: Sebastian Meyer <git-commit@mailhell.seb7.de>
[merged BT and WIFI patches and updated commit message]
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>

arm64: dts: allwinner: unify header comment style

Allwinner device tree files used different comment style for
copyright notice.

Update this to keep a coherency.

Signed-off-by: Clément Péron <peron.clem@gmail.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>

arm64: dts: allwiner: Fix typo in dual licensed SPDX identifier

With dual licensed SPDX identifier the "OR" should
be uppercase.

Signed-off-by: Clément Péron <peron.clem@gmail.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>

arm64: allwinner: h6: Add OrangePi Lite2 initial support

OrangePi Lite2 is Allwinner H6 based open-source SBC,
which support:
- Allwinner H6 Quad-core 64-bit ARM Cortex-A53
- GPU Mali-T720
- 1GB LPDDR3 RAM
- AXP805 PMIC
- AP6356S Wifi/BT
- USB 2.0, USB 3.0 Host, OTG
- HDMI port
- 5V/2A DC power supply

Signed-off-by: Jagan Teki <jagan@openedev.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>