simpleperf: enable two options by default.

Enable dumping symbols in record cmd by default,
and change --dump-symbols option into --no-dump-symbols option.
Show brief call graph in report cmd by default,
and change --brief-callgraph option into --full-callgraph option.
Make the change because these two behaviors are always recommended.

Bug: None.
Test: run simpleperf_unit_test.
Change-Id: Icff6a843a7f46c56313500f4da119aa5118a57e5
9 files changed