base: Bump openssh to V_7_9_P1
base: Bump openssh to V_7_9_P1

Also, be explicit with ssl-dir for configuration.

dockcross/dockcross,dockcross/dockcross,dockcross/dockcross,dockcross/dockcross,thewtex/cross-compilers,thewtex/cross-compilers,thewtex/cross-compilers,thewtex/cross-compilers