vold: acquire wakelock on fstrim thread

If fstrim thread creation or detachment is failed, wakelock can be leaked.
So move wakelock acquire to do_fstrim_filesystems function

Change-Id: I4da3164343af83fae3e5b01700f43d1752661276
Signed-off-by: Young-ho Cha <ganadist@gmail.com>
1 file changed