coresight: Add snapshot of Coresight TPDM and TPDA driver

This is a snapshot of the coresight-ost driver as of msm-4.9
commit '045b56b03f910646092e746a85eeef1439636954'(coresight:
Switch all coresight driver to amba bus framework).

Change-Id: Ie1b98c156b97d2a8e8b9e1893abe6667ed8c5a1d
Signed-off-by: Rama Aparna Mallavarapu <aparnam@codeaurora.org>