[bootlin/training-materials] 8f2c80: yocto-layer: fix typo

[Alexandre Belloni]

  Branch: refs/heads/master
  Home:   https://github.com/bootlin/training-materials
  Commit: 8f2c80560fbfb4e1d2aef86ad7cda1743029a663
      https://github.com/bootlin/training-materials/commit/8f2c80560fbfb4e1d2aef86ad7cda1743029a663
  Author: Alexandre Belloni <alexandre.belloni at bootlin.com>
  Date:   2022-05-06 (Fri, 06 May 2022)

  Changed paths:
    M slides/yocto-layer/yocto-layer.tex

  Log Message:
  -----------
  yocto-layer: fix typo

Signed-off-by: Alexandre Belloni <alexandre.belloni at bootlin.com>