[bootlin/training-materials] 6a22ba: SAMA5D3 Xplained: fix slides

[Michael Opdenacker]

  Branch: refs/heads/master
  Home:   https://github.com/bootlin/training-materials
  Commit: 6a22ba7440a17c5ea6bd67733af179925ccca5d8
      https://github.com/bootlin/training-materials/commit/6a22ba7440a17c5ea6bd67733af179925ccca5d8
  Author: Michael Opdenacker <michael.opdenacker at bootlin.com>
  Date:   2022-01-25 (Tue, 25 Jan 2022)

  Changed paths:
    M slides/sysdev-shopping-list/sysdev-shopping-list.tex
    M slides/xplained-board/xplained-board.tex

  Log Message:
  -----------
  SAMA5D3 Xplained: fix slides

- Fix broken footnote (not showing with text outside of columns)
- Detail availability issues

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