Add device tree nodes for coresight CX and GX DBGC blocks
for sun devices. Also, add coresight funnel configuration
for graphics funnel device.
Change-Id: Id0a73ac9ef51e1039b718d5d51a4fc063d218a94
Signed-off-by: Kamal Agrawal <quic_kamaagra@quicinc.com>