ethtool: Update to version 6.15

ethtool: Update to version 6.15

- Update from version 6.9 to 6.15
- Update of rootfile
- Changelog
    6.15
	* Feature: support OR-XOR symmetric RSS hash type (-x/-X)
	* Feature: dump registers for hibmcge driver (-d)
	* Feature: configure header-data split threshold (-g/-G)
	* Feature: dump registers for fbnic driver (-d)
	* Feature: JSON output for channels info (-l)
	* Fix: incorrect data in appstream metainfo XML
	* Fix: prevent potential null pointer dereferences
	* Fix: more consistent and better parseable per lane signal info (-d)
    6.14
	* Feature: list PHYs (--show-phys)
	* Feature: target a specific PHY with some commands (--phy)
	* Feature: more attributes for C33 PSE (--show-pse, --set-pse)
	* Feature: source information for cable tests (--cable-test[-tdr])
	* Feature: JSON output for module info (-m)
	* Feature: misc RSS hash info improvements (-x)
	* Feature: tsinfo hwtstamp provider (--{get,set}-hwtimestamp-cfg)
	* Fix: fix wrong auto-negotiation state (no option)
	* Fix: more explicit RSS context action (-n)
	* Fix: print PHY address as decimal (no option)
	* Fix: fix return value on flow hashing error (-N)
	* Fix: fix JSON output for IRQ coalescing
	* Fix: fix MDI-X info output (no option)
	* Misc: code cleanup in module parsers
	* Misc: provide module_info JSON schema
	* Misc: add '-j' alias for --json
	* Misc: provide AppStream metainfo XML
	* Misc: update message descriptions for debugging output
    6.11
	* Feature: cmis: print active and inactive firmware versions
	* Feature: flash transceiver module firmware (--flash-module-firmware)
	* Feature: add T1BRR 10Mb/s mode to link mode tables
	* Feature: support for disabling netlink from command line
	* Fix: fix lanes parameter format specifier
	* Fix: add missing clause 33 PSE manual description
	* Fix: qsf: Better handling of Page A2h netlink read failure
	* Fix: rss: retrieve ring count using ETHTOOL_GRXRINGS ioctl (-x)
	* Misc: man page formatting fix
    6.10
	* Feature: suport for PoE in PSE (--show-pse and --set-pse)
	* Feature: add statistics support to tsinfo (-T)
	* Feature: add JSON output to base command (no option)
	* Feature: add JSON output to EEE info (--show-eee)
	* Fix: qsfp: better handling on page 03h read failure (-m)
	* Fix: handle zero arguments for module eeprom dump (-m)
	* Fix: check for missing arguments in do_srxfh() (-X)
	* Misc: compiler warnings in "make check"
	* Misc: more descriptive error when JSON output is not available

Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>