spi: spi-cadence: Fix pm_runtime_set_suspended() with runtime pm enabled

spi: spi-cadence: Fix pm_runtime_set_suspended() with runtime pm enabled

It is not valid to call pm_runtime_set_suspended() for devices
with runtime PM enabled because it returns -EAGAIN if it is enabled
already and working. So, call pm_runtime_disable() before to fix it.

Fixes: d36ccd9f7ea4 ("spi: cadence: Runtime pm adaptation")
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Link: https://patch.msgid.link/20240923040015.3009329-3-ruanjinjie@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>