dt-bindings: trivial-devices: fix Rohm BH2228FV compatible string

When Maxime originally added the BH2228FV to the spidev driver, he spelt
it incorrectly - the d should have been a b. That spelling was then
propagated to the binding when written by Krzysztof. Add a new, correctly
spelt compatible and advise against using the incorrectly spelling.

Fixes: 025aea27 ("dt-bindings: trivial-devices: document SPI dev compatibles")
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Link: https://patch.msgid.link/20240717-exuberant-enlighten-f890fabcd247@spud


Signed-off-by: Mark Brown <broonie@kernel.org>