[bootlin/training-materials] ce33cb: labs/sysdev-u-boot-stm32: misc improvements

[Michael Opdenacker]

  Branch: refs/heads/master
  Home:   https://github.com/bootlin/training-materials
  Commit: ce33cbcd75d43a377c2d50b449ff4793e8a04cec
      https://github.com/bootlin/training-materials/commit/ce33cbcd75d43a377c2d50b449ff4793e8a04cec
  Author: Michael Opdenacker <michael.opdenacker at bootlin.com>
  Date:   2023-01-31 (Tue, 31 Jan 2023)

  Changed paths:
    M labs/sysdev-u-boot-stm32/sysdev-u-boot-stm32.tex

  Log Message:
  -----------
  labs/sysdev-u-boot-stm32: misc improvements

- Erasing all the partitions to eliminate leftovers from previous labs
- Removing "unit compact" in parted, apparently not needed
- Updated the "print" output (you no longer see an ext4 partition
  before you created it)

Signed-off-by: Michael Opdenacker <michael.opdenacker at bootlin.com>