dt-bindings: arm: Update Corstone-1000 maintainers

The previous maintainers are no longer working on the Corstone-1000.
- Add new maintainers: Abdellatif El Khlifi, Hugues Kamba Mpiana
- Remove maintainers: Vishnu Banavath, Rui Miguel Silva
- Update contact information for existing maintainers

Signed-off-by: Hugues KAMBA MPIANA <hugues.kambampiana@arm.com>
Link: https://lore.kernel.org/r/20240815145622.377614-1-hugues.kambampiana@arm.com


Signed-off-by: Rob Herring (Arm) <robh@kernel.org>