scsi: ufs: core: Export ufshcd_is_hba_active()

Export ufshcd_is_hba_active() to allow driver modules to check the state of
the host controller.

Signed-off-by: Nitin Rawat <quic_nitirawa@quicinc.com>
Link: https://lore.kernel.org/r/20230726134140.7180-2-quic_nitirawa@quicinc.com


Acked-by: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>