vold: Increase timeout due to selinux changes

The new selinux_reload_policy command can take a while to complete on
some systems.  The reason is being investigated, and hopefully a fix can
be found to improve performance, but for now, increase the timeout that
vold waits for the post_fs_data section to complete when decrypting a
device on boot.

Also, emit a decent error message if the device times out.

Bug: 8967715
Change-Id: Ifb01c983dffe095a9de752c17c467a1751e9ce99
1 file changed