init: update ownership of LED blink file

Update ownership permission of red/green/blue LED 'blink' file so that
system service can update the blink property.

Issue: FP2N-199
CRs-Fixed: 936764
Change-Id: I212505412d8e8bbd03b72482d1d68305079cd742
Signed-off-by: Chunmei Cai <ccai@codeaurora.org>
(cherry picked from commit bd916c476f9df2b6189522c8fcf3159e4b93b0d4)
1 file changed