phy: samsung-ufs: ufs: change phy on/off control

The sequence of controlling ufs phy block should be below:

1) Power On
 - Turn off pmu isolation
 - Clock enable
2) Power Off
 - Clock disable
 - Turn on pmu isolation

Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220706020255.151177-3-chanho61.park@samsung.com


Signed-off-by: Vinod Koul <vkoul@kernel.org>