spi: omap2-mcspi: switch to use modern name

spi: omap2-mcspi: switch to use modern name

[ Upstream commit ee0f793cc1881225dee04216f1080201603b46bb ]

Change legacy name master/slave to modern name host/target or controller.

No functional changed.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20230823033003.3407403-22-yangyingliang@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Stable-dep-of: 2d9f4877988f ("spi: omap2-mcspi: Fix hardcoded reference clock")
Signed-off-by: Sasha Levin <sashal@kernel.org>