MAINTAINERS: update Xe driver maintainers

Because I left Intel, I'm removing myself from the list
of Xe driver maintainers.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Acked-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240515162222.12958-3-ogabbay@kernel.org


Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>