tcl 8.5.11: fix packaging for native version

tcl 8.5.11: fix packaging for native version

Fix an issue in the previous commit:

ERROR: Nothing RPROVIDES 'tcl-native-lib-native' (but virtual:native:/srv/home/pokybuild/yocto-autobuilder/yocto-slave/nightly/build/meta/recipes-devtools/tcltk/tcl_8.5.11.bb RDEPENDS on or otherwise requires it)
NOTE: Runtime target 'tcl-native-lib-native' is unbuildable, removing.

by replacing ${PN}-lib with tcl-lib

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>