vold: Handle wrong entries in vold.fstab

If the entry in vold.fstab doesn't exist then vold
is crashing in realpath where it tries to resolve
symlink.

Due to the crash in vold the system keeps restarting
vold and never completes the boot process.

This fixes the bugs:
https://bugs.launchpad.net/linaro-android/+bug/1048476
https://bugs.launchpad.net/linaro-android/+bug/1047964

Change-Id: I49a2da8c8813afcbf0dbaede6bc19dc987db61a6
Signed-off-by: Vishal Bhoj <vishal.bhoj@linaro.org>
1 file changed