[bootlin/training-materials] 3835cf: slides/sysdev-bootloaders-sequence: fix typo

[Michael Opdenacker]

  Branch: refs/heads/master
  Home:   https://github.com/bootlin/training-materials
  Commit: 3835cf8bb7c432e8643b41ebf6cfb46948787837
      https://github.com/bootlin/training-materials/commit/3835cf8bb7c432e8643b41ebf6cfb46948787837
  Author: Michael Opdenacker <michael.opdenacker at bootlin.com>
  Date:   2023-01-16 (Mon, 16 Jan 2023)

  Changed paths:
    M slides/sysdev-bootloaders-sequence/sysdev-bootloaders-sequence.tex

  Log Message:
  -----------
  slides/sysdev-bootloaders-sequence: fix typo

External RAM is not SRAM, of course

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