scsi: ufs: core: Correct ufshcd_shutdown() flow

After ufshcd_wl_shutdown() set device power off and link off,
ufshcd_shutdown() could turn off clock/power. Also remove
pm_runtime_get_sync.

The reason why it is safe to remove pm_runtime_get_sync() is because:

 - ufshcd_wl_shutdown() -> pm_runtime_get_sync() will resume hba->dev too.

 - device resume(turn on clk/power) is not required, even if device is in
   RPM_SUSPENDED.

Link: https://lore.kernel.org/r/[email protected]
Fixes: b294ff3 ("scsi: ufs: core: Enable power management for wlun")
Cc: <[email protected]> # 5.15.x
Reviewed-by: Stanley Chu <[email protected]>
Signed-off-by: Peter Wang <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>

Author: ptr324

drivers/ufs/core/ufshcd.c

@@ -9487,12 +9487,8 @@ EXPORT_SYMBOL(ufshcd_runtime_resume);
 int ufshcd_shutdown(struct ufs_hba *hba)
 {
 	if (ufshcd_is_ufs_dev_poweroff(hba) && ufshcd_is_link_off(hba))
-		goto out;
-
-	pm_runtime_get_sync(hba->dev);
+		ufshcd_suspend(hba);
 
-	ufshcd_suspend(hba);
-out:
 	hba->is_powered = false;
 	/* allow force shutdown even in case of errors */
 	return 0;