v1.18.5

This is mostly a Buildroot and Erlang bug fix release. It should be safe to
upgrade to from v1.18.4.

• Changes

  • boardid: Support reading serial numbers from the GRiSP2 EEPROM
  • bborg-overlays: Support changing the directory where Beaglebone device tree
    overlays get installed. Default remains the same (/lib/firmware).

• Package updates

  • Buildroot 2021.11.2
  • Erlang/OTP 24.2.2
  • boardid 1.12.0