Add USB bam changes to support QDSS in msm-8794. Main additions: Support device-tree files. Add disconnect bam pipe support. Add new API to retrieve pipe connection: get_bam2bam_connection_info. Change-Id: I200d44dee319b8a9efda31b238c99202efddaa07 Signed-off-by: Shimrit Malichi <smalichi@codeaurora.org>