migrate_localcount.bbclass: use PRAUTOINX instead of PN & PV

- we need to use PRAUTOINX (it covers all cases)
- it addresses bumped PE issues

[YOCTO #3071]

Signed-off-by: Constantin Musca <constantinx.musca@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
openssh : upgrade to 6.1p1

Signed-off-by: Andrei Dinu <andrei.adrianx.dinu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
mtools : upgrade to 4.0.18

Signed-off-by: Andrei Dinu <andrei.adrianx.dinu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>