mdio-tools: update to 1.2.0

mdio-tools: update to 1.2.0

Update the mdio-netlink kmod and userspace mdio-tools to version 1.2.0.
This allows dropping the time64 musl patch which was upstreamed.

[v1.2.0] - 2022-09-15
---------------------

- mdio: A new addressing mode "mmd-c22": Used to access MMDs attached
  to MDIO controllers without Clause 45 support by using registers 13
  and 14 in the device's Clause 22 register space
- mdio: Pretty print gigabit link capability information from a PHY's
  extended status register
- mdio: Pretty print lots of status information from MMDs (C45 PHYs)
- mvls: Decode priority override information of ATU entries

- mvls: Table listings now always prints out the device information,
  even on single chip systems.

Signed-off-by: Robert Marko <robimarko@gmail.com>