scsi: ufs: exynos: remove tx_dif_p_nsec from exynosauto_ufs_drv_init()

Remove the assignment of tx_dif_p_nsec as both users of
exynosauto_ufs_drv_init() function (exynosauto and gs101) set the
EXYNOS_UFS_OPT_SKIP_CONFIG_PHY_ATTR flag meaning that tx_dif_p_nsec has
no effect.

Additionally both users also set the samsung,sysreg dt property, meaning
the execution flow will always return on the regmap_update_bits() call
before the assignment.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Link: https://lore.kernel.org/r/20241031150033.3440894-9-peter.griffin@linaro.org
Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

Author: petegriffin

drivers/ufs/host/ufs-exynos.c

@@ -200,17 +200,13 @@ static inline void exynos_ufs_ungate_clks(struct exynos_ufs *ufs)
 
 static int exynosauto_ufs_drv_init(struct exynos_ufs *ufs)
 {
-	struct exynos_ufs_uic_attr *attr = ufs->drv_data->uic_attr;
-
 	/* IO Coherency setting */
 	if (ufs->sysreg) {
 		return regmap_update_bits(ufs->sysreg,
 					  ufs->shareability_reg_offset,
 					  UFS_SHARABLE, UFS_SHARABLE);
 	}
 
-	attr->tx_dif_p_nsec = 3200000;
-
 	return 0;
 }