Update loopTimeoutDuration documentation

Bug: 149686804
Test: N/A
Change-Id: I96c012e63776ca3f4a63a6887c82456744a37029
Merged-In: I96c012e63776ca3f4a63a6887c82456744a37029
(cherry picked from commit 411bb0e7df02130408ca200c6ffe312a12acbccb)
1 file changed