Bump version for tls-recovery

Hardware TLS will be enabled for androidarmv6 devices,
and flashing new recovery is required (v6.0.5.1)

This recovery supports both hardware TLS and emulated TLS.

TLS commits :

http://review.androidarmv6.org/#/c/7281/
http://review.androidarmv6.org/#/c/7285/
http://review.androidarmv6.org/#/c/7289/

Change-Id: If0a03b909d42597141694f072a77d7aa213a26d3