dt-binding: Update oss email address for Coresight documents

dt-binding: Update oss email address for Coresight documents

Update the OSS email addresses across all Coresight documents, as the
previous addresses have been deprecated.

Signed-off-by: Jie Gan <jie.gan@oss.qualcomm.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20250902042143.1010-1-jie.gan@oss.qualcomm.com