tools/emacs: update embark submodule - home - Unnamed repository; edit this file 'description' to name the repository.

commit 593498eaf2dcf26d6f3cb494402a9c4f0d4d102f
parent b58349f63ba7342c8123a981b99bc3c3592d4b89
Author: Vincent Demeester <vincent@sbr.pm>
Date:   Wed, 24 Jun 2020 10:24:23 +0200

tools/emacs: update embark submodule

Signed-off-by: Vincent Demeester <vincent@sbr.pm>

	home Unnamed repository; edit this file 'description' to name the repository.
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