rootdir: init.rc: mount tracefs

Bug: 153849221
Test: build and try to capture the trace by perfetto and systrace
Change-Id: Ie8a13e12038bd66afcd264079a2c5f25daaa20ee
Merged-In: Ie8a13e12038bd66afcd264079a2c5f25daaa20ee
(cherry picked from commit 9d19a054224cbc7145e39f33dd52b509aa1593b2)
1 file changed