scsi: MAINTAINERS: Add entry for Exynos UFS driver

Add maintainer entry for Exynos UFS driver.

Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20230114080247.601312-1-alim.akhtar@samsung.com


Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>