Tiling: Fix applying tiling on enable with a new config.
Tiling: Fix applying tiling on enable with a new config.

Tiling wasn't being applied when enabling it with a new config because
we were comparing with the old config instead of just always applying.

This fixes T974.

tasn/enlightenment,tizenorg/platform.upstream.enlightenment,rvandegrift/e,tizenorg/platform.upstream.enlightenment,FlorentRevest/Enlightenment,rvandegrift/e,tizenorg/platform.upstream.enlightenment,tasn/enlightenment,rvandegrift/e,FlorentRevest/Enlightenment,tasn/enlightenment,FlorentRevest/Enlightenment