coresight: add coresight cti driver

Add support for CoreSight Cross Trigger Interface driver which
can be used to setup various cross-triggers available between
hardware blocks. This driver provides both an in kernel api as
well as a sysfs based user interface.

Change-Id: Idf445e6d1a3b082e0101b9b38926584527f1630f
Signed-off-by: Pratik Patel <pratikp@codeaurora.org>
7 files changed