Add the SPI controller (FIU, Flash Interface Unit) to the WPCM450
devicetree, according to the newly defined binding, as well as the SHM
(shared memory interface) syscon.
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Link: https://lore.kernel.org/r/20221105185911.1547847-6-j.neuschaefer@gmx.netSigned-off-by: Joel Stanley <joel@jms.id.au>