Extend the existing Vybrid DSPI devicetree implementation to also
describe the dspi2 and dspi3 functional blocks.
Signed-off-by: NCory Tusar <cory.tusar@pid1solutions.com>
Acked-by: NStefan Agner <stefan@agner.ch>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>