config: Enable jailer by default when using firecracker
Now that we have enabled CI tests for jailed firecracker and we have
fixed the  issue with removing the block storage device we
should leverage the full power of firecracker and enable jailer by
default.
Fixes:
@@ -30,9 +30,7 @@ valid_hypervisor_paths = @FCVALIDHYPERVISORPATHS@
# If the jailer path is not set kata will launch firecracker
# without a jail. If the jailer is set firecracker will be
# launched in a jailed enviornment created by the jailer
-# This is disabled by default as additional setup is required
-# for this feature today.
-#jailer_path = "@FCJAILERPATH@"
+jailer_path = "@FCJAILERPATH@"
# List of valid jailer path values for the hypervisor
# Each member of the list can be a regular expression
