CFI Linux CF: Add flags for better stack traces.
CFI Linux CF: Add flags for better stack traces.

Based on https://codereview.chromium.org/1289673002 and the 'ASAN Release
(symbolized)' config in masters/master.chromium.lkgr/master_lkgr_cfg.py.
The former will be partially reverted once this lands in order to prevent the flags
from interfering with regular perf measurements.

BUG=464797
R=maruel@chromium.org
TBR=inferno@chromium.org

Review URL: https://codereview.chromium.org/1291123002

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@296303 0039d316-1c4b-4281-b951-d872f2087c98

eunchong/build,eunchong/build,eunchong/build,eunchong/build