ARM: dts: exynos: add charger and battery to p4note

Add device tree entry to support the Summit SMB347 charger which is
built into the p4note devices, as well as a simple battery node.

Signed-off-by: Martin Jücker <martin.juecker@gmail.com>
Link: https://lore.kernel.org/r/d7f7b0f87a18b5cc44ba97390461c15469439829.1643919230.git.martin.juecker@gmail.com


Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>