scsi: MAINTAINERS: ufs: remove pedrom.sousa@synopsys.com

Pedro has left Synopsys and his email address doesn't work anymore.
Everytime after sending email I will receive his undeliverable email.
Remove his email address from MAINTAINERS.

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