spi: microchip-core: switch to use modern name

[ Upstream commit 8f8bf52e

 ]

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/20230823033003.3407403-7-yangyingliang@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Stable-dep-of: 3a5e7628

 ("spi: microchip-core: fix init function not setting the master and motorola modes")
Signed-off-by: Sasha Levin <sashal@kernel.org>