scsi: ufs: ufshpb: Remove enum initialization value

If the first enumerator has no initializer, the value of the corresponding
constant is zero.

Link: https://lore.kernel.org/r/20220505134707.35929-3-huobean@gmail.com


Reviewed-by: Keoseong Park <keosung.park@samsung.com>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>