Merge branch '2023-03-06-assorted-platform-updates' into next

- semihosting updates for arm and riscv, assorted arm64 core updates,
  assorted ast2600 updates, remove some more unused code, some TI K3
  defconfig and DTS updates, uniphier DTS updates, mpc83xx Kconfig
  cleanup, re-add fttmr010 driver with an update to use DM.