rtc: sun6i: Always export the internal oscillator

rtc: sun6i: Always export the internal oscillator

[ Upstream commit cb298f538b14f3ec4b468b832239ee5e32be0f7d ]

On all variants of the hardware, the internal oscillator is one possible
parent for the AR100 clock. It needs to be exported so we can model that
relationship correctly in the devicetree.

Fixes: 6879f7aa3f1f ("rtc: sun6i: Expose internal oscillator through device tree")
Signed-off-by: Samuel Holland <samuel@sholland.org>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20221229215319.14145-1-samuel@sholland.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>