coresight: add TPDM and TPDA driver support in upstream implementation

Add TPDM and TPDA drivers in upstream implementation of Coresight driver.

This change copies coresight-tpdm.c and coresight-tpda.c files from
drivers/coresight (commit : a8371783)
to driver/hwtracing/coresight directory.

Change-Id: I8a518de3f0ab0e4b0880c5ca00d90a012234a91c
Signed-off-by: Shashank Mittal <mittals@codeaurora.org>