Reduce oom_score_adj to zero for perfprofd.

Up until this point perfprofd has inherited a
decreased OOM score of -1000 from init -- this
doens't make sense given that perfprofd is not
a critical system service. This fixes perfprofd to
reduce its oom_score_adj to 0.

Bug: 25216630
Change-Id: Ica8a300d8c33016bcbd3b0ecd25393828654878e
1 file changed