scsi: ufs: fix wrong/ambiguous fall through comments

These aren't really falling through to anywhere meaningful.
Signed-off-by: Tomohiro Kusumi <tkusumi@tuxera.com>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/ufs/ufshcd.c

@@ -553,15 +553,14 @@ static inline u32 ufshcd_get_intr_mask(struct ufs_hba *hba)
 	case UFSHCI_VERSION_10:
 		intr_mask = INTERRUPT_MASK_ALL_VER_10;
 		break;
-	/* allow fall through */
 	case UFSHCI_VERSION_11:
 	case UFSHCI_VERSION_20:
 		intr_mask = INTERRUPT_MASK_ALL_VER_11;
 		break;
-	/* allow fall through */
 	case UFSHCI_VERSION_21:
 	default:
 		intr_mask = INTERRUPT_MASK_ALL_VER_21;
+		break;
 	}
 
 	return intr_mask;