Default to /data/media/0 unless we define BOARD_HAS_NO_MULTIUSER_SUPPORT
use lstat to check if file exists

this will only probe the symlink instead of the target file
6.43.5
f2fs: enable support config for M8 and Nexus 5

you still need to merge f2fs backward compatibility code for 3.4.0 kernels
fix recursive path creation bug for /data/media/0
6.43.6
enable f2fs config for m7 variants
falcon: enable f2fs flag (probably redundant with device tree config)
Do not try f2fs fstab mount options on an ext4 partition

for devices with an f2fs entry in recovery.fstab
after converting to ext4, do not use the f2fs recovery.fstab mount options
but drop to bare minimal mount options
fix Galaxy Mega background
6.43.7
do not redefine default recovery ext4 mount options
error message when converting unsupported file systems
6.43.8
Merge 4.3.8 release, fix conflicts