usb: musb: sunxi: Introduce config struct

Currently the probe routine explicitly compares the compatible string of
the device node to figure out which features and quirks a certain
Allwinner MUSB model requires. This gets harder to maintain for new
SoCs.

Add a struct sunxi_musb_cfg that names the features and quirks
explicitly, and create instances of this struct for every type of MUSB
device we support. Then bind this to the compatible strings via the OF
data feature.

Signed-off-by: Andre Przywara <[email protected]>
Reviewed-by: Jernej Skrabec <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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