scsi: ufs: fix wrong sequence of lrb_in_use and pm

[1] tried to fix wrong lrbp=NULL after clear_bit_unlock, which caused a race
condition. But, it caused a power regression since __ufshcd_release was called
before lrb_in_use is released.

Actually, we should have followed the sequence:
1. lrbp->cmd = NULL
2. clear_bit_unlock()
3. __ufshcd_release()
4. __ufshcd_hibern8_release()

Let's add right fix.

[1] f0e7e5baba0a (scsi: ufs: Avoid potential lrb race caused by early release of lrb_in_use")

Bug: 157450639
Fixes: 639e1063a57e ("Revert "scsi: ufs: Avoid potential lrb race caused by early release of lrb_in_use"")
Fixes: f0e7e5baba0a (scsi: ufs: Avoid potential lrb race caused by early release of lrb_in_use")
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
Change-Id: If738dc3e8e9caa7eee28c729dea3a47a3ed56b97
[dereference23: Apply to msm-4.14]
Signed-off-by: Alexander Winkowski <dereference23@outlook.com>
Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>