Rename Omnitrace to ROCm Systems Profiler (#4)

The Omnitrace program is being renamed. 

Full name: "ROCm Systems Profiler"
Package name: "rocprofiler-systems"
Binary / Library names: "rocprof-sys-*"

---------
Co-authored-by: Xuan Chen <xuchen@amd.com>
Signed-off-by: David Galiffi <David.Galiffi@amd.com>

tests/validate-causal-json.py

@@ -266,7 +266,7 @@ class experiment_progress(object):
 def process_samples(data, _data):
     if not _data:
         return data
-    for record in _data["omnitrace"]["causal"]["records"]:
+    for record in _data["rocprofsys"]["causal"]["records"]:
         for samp in record["samples"]:
             _info = samp["info"]
             _count = samp["count"]
@@ -297,7 +297,7 @@ def process_data(data, _data, args):
     _selection_filter = re.compile(args.experiments)
     _progresspt_filter = re.compile(args.progress_points)
 
-    for record in _data["omnitrace"]["causal"]["records"]:
+    for record in _data["rocprofsys"]["causal"]["records"]:
         for exp in record["experiments"]:
             _speedup = exp["virtual_speedup"]
             _duration = exp["duration"]