e2fsprogs: Fix missing check for permission denied.

e2fsprogs: Fix missing check for permission denied.

If the path to "ROOT_SYSCONFDIR /mke2fs.conf" has a permission denied problem,
then the get_dirlist() call will return EACCES. But the code in profile_init
will treat that as a fatal error and all executions will fail with:
      Couldn't init profile successfully (error: 13).

But the problem should not really be visible for the target package as the path
then will be "/etc/mke2fs.conf", and it is not likely that a user have no
permission to read /etc.

Signed-off-by: Jian Liu <jian.liu@windriver.com>
Signed-off-by: Jackie Huang <jackie.huang@windriver.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>