arm/dt: 8226: Add ETM device tree nodes

Embedded Trace Macrocell is part of coresight tracing infrastructure.
ETM processor trace enables instructions and data tracing. Add device
tree entries for ETM on 8226.

Change-Id: I22245b0772517ef66f42bda5507aee9f3d9e65e9
Signed-off-by: Pushkar Joshi <pushkarj@codeaurora.org>
1 file changed