Winscope: fix .pb location for sf traces

Trace location was incorrect. Changing to correct location.

Test: run capture_sf_trace.sh, upload to winscope, see trace

Merged-In: Ia84501014e6cf83d2fb1d167c1a7aac8b64a06d4
Change-Id: Ia84501014e6cf83d2fb1d167c1a7aac8b64a06d4
Fixes: b/110715663
1 file changed