scsi: ufs: exynos: gs101: Enable clock gating with hibern8

scsi: ufs: exynos: gs101: Enable clock gating with hibern8

Enable clock gating and hibern8 capabilities for gs101. This leads to a
significantly cooler phone when running the upstream kernel.

The exynos_ufs_post_hibern8() hook is also updated to remove the
UIC_CMD_DME_HIBER_EXIT code path as this causes a hang on gs101.

The code path is removed rather than re-factored as no other SoC in
ufs-exynos driver sets UFSHCD_CAP_HIBERN8_WITH_CLK_GATING
capability. Additionally until the previous commit the hibern8 callbacks
were broken anyway as they expected a bool.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Link: https://lore.kernel.org/r/20241031150033.3440894-14-peter.griffin@linaro.org
Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>