spi: Drop unused efm32 bus driver

Support for this machine was just removed, so drop the now unused spi
bus driver, too.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20210114151630.128830-5-u.kleine-koenig@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Uwe Kleine-König 2021-01-14 16:16:27 +01:00 • committed by Mark Brown
commit 0ba882ae28
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4 changed files with 0 additions and 485 deletions