scripts: tool for visualizing DMA mapping API ftrace dump

Add a tool for parsing and plotting data from dmadebug:* ftrace events.

Bug 1173494

Change-Id: Id7e175fda4c1ef42ef6a0403f1bece36b273cd99
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com>
Reviewed-on: http://git-master/r/268051
Reviewed-by: Krishna Reddy <vdumpa@nvidia.com>
5 files changed