ethtool: update to 6.2

ethtool: update to 6.2

Release notes:
- Feature: link down event statistics (no option)
- Feature: JSON output for coalesce (-c)
- Feature: new link modes (no option)
- Feature: JSON output for ring (-g)
- Feature: netlink handler for RSS get (-x)
- Fix: fix boolean value output in JSON output
- Fix: fix build errors and warnings

Remove upstreamed patches:
- 100-uapi-Bring-in-if-h.patch
- 101-netlink-Fix-maybe-uninitialized-meters-variable.patch
- 102-raw-marvell-c-Fix-build-with-musl-libc.patch

Signed-off-by: Nick Hainke <vincent@systemli.org>