spidev: Add Silicon Labs EM3581 device compatible

[ Upstream commit c67d90e0 ]

Add compatible string for Silicon Labs EM3581 device.

Signed-off-by: Vincent Tremblay <vincent@vtremblay.dev>
Link: https://lore.kernel.org/r/20221227023550.569547-2-vincent@vtremblay.dev


Signed-off-by: Mark Brown <broonie@kernel.org>
Stable-dep-of: fc28d1c1fe3b ("spi: spidev: add correct compatible for Rohm BH2228FV")
Signed-off-by: Sasha Levin <sashal@kernel.org>