scsi: ufs: core: Declare functions once

scsi: ufs: core: Declare functions once

Several functions are declared in include/ufs/ufshcd.h and also in
drivers/ufs/core/ufshcd-priv.h. Remove the duplicate declarations.

Reviewed-by: Peter Wang <peter.wang@mediatek.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20240708211716.2827751-2-bvanassche@acm.org
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Keoseong Park <keosung.park@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>