perf tests: Add attr record graph test

Adding tests to validate perf_event_attr data for commands:
  'record -g --'
  'record -g fp
  'record -g dwarf
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1351634526-1516-10-git-send-email-jolsa@redhat.comSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/tests/attr/test-record-graph-default

+[config]
+command = record
+args    = -g -- kill >/dev/null 2>&1
+
+[event:base-record]
+sample_type=295

tools/perf/tests/attr/test-record-graph-dwarf

+[config]
+command = record
+args    = -g dwarf -- kill >/dev/null 2>&1
+
+[event:base-record]
+sample_type=12583
+exclude_callchain_user=1
+sample_stack_user=8192
+# TODO different for each arch, no support for that now
+sample_regs_user=*

tools/perf/tests/attr/test-record-graph-fp

+[config]
+command = record
+args    = -g fp kill >/dev/null 2>&1
+
+[event:base-record]
+sample_type=295