scsi: ufs: core: Introduce ufshcd_has_pending_tasks()

scsi: ufs: core: Introduce ufshcd_has_pending_tasks()

[ Upstream commit e738ba458e7539be1757dcdf85835a5c7b11fad4 ]

Prepare to remove hba->clk_gating.active_reqs check from
ufshcd_is_ufs_dev_busy().

Signed-off-by: Avri Altman <avri.altman@wdc.com>
Link: https://lore.kernel.org/r/20241124070808.194860-2-avri.altman@wdc.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Stable-dep-of: 839a74b5649c ("scsi: ufs: Fix toggling of clk_gating.state when clock gating is not allowed")
Signed-off-by: Sasha Levin <sashal@kernel.org>