ethtool: upgrade 6.11 -> 6.14

ethtool: upgrade 6.11 -> 6.14

Package metainfo xml to ${PN}, fix the issue that:

| ERROR: ethtool-6.14-r0 do_package: QA Issue: ethtool: Files/directories were installed but not shipped in any package:
|   /usr/share/metainfo
|   /usr/share/metainfo/org.kernel.software.network.ethtool.metainfo.xml
| Please set FILES such that these items are packaged. Alternatively if they are unneeded, avoid installing them or delete them within do_install.
| ethtool: 2 installed and not shipped files. [installed-vs-shipped]

Signed-off-by: Lei Maohui <leimaohui@fujitsu.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>