Fsync directories after creating files

Bug: 112145641
Bug: 124279741
Bug: 120248692
Test: adb shell locksettings set-pin 1111 && \
    adb shell "echo b > /proc/sysrq-trigger"
Change-Id: I53d252942c21365983b4f8b6e0948b1864f195c1
Merged-In: I53d252942c21365983b4f8b6e0948b1864f195c1
4 files changed