dt-bindings: Fix typos

Fix typos in Documentation/devicetree/bindings. The changes are in
descriptions or comments where they shouldn't affect functionality.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://lore.kernel.org/r/20230814212822.193684-3-helgaas@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>

spi: bcm2835aux: spi: add bindings for the bcm2835 auxiliary spi devices

This defines the spi1 and spi2 devices in the device-tree.

Signed-off-by: Martin Sperl <kernel@martin.sperl.org>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Mark Brown <broonie@kernel.org>