scsi: ufs: Verify UIC locking requirements at runtime

Instead of documenting the locking requirements of the UIC code as
comments, use lockdep_assert_held() such that lockdep verifies the lockdep
requirements at runtime if lockdep is enabled.

Link: https://lore.kernel.org/r/20210722033439.26550-8-bvanassche@acm.org


Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Stanley Chu <stanley.chu@mediatek.com>
Cc: Can Guo <cang@codeaurora.org>
Cc: Asutosh Das <asutoshd@codeaurora.org>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Daejun Park <daejun7.park@samsung.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>