feat(tc): add MHUv3 doorbell support on TC3

Enables the doorbell channels in MHUv3 for TC3.

Change-Id: Ib4f47df3e54f9182939ea6c1d8bc1a66a3c03094
Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>
Signed-off-by: Leo Yan <leo.yan@arm.com>
2 files changed