treewide: Fix Marek's name and change my e-mail address

Fix diacritics in some instances of my name and change my e-mail address
to kabel@kernel.org.

Add corresponding .mailmap entries.

Signed-off-by: Marek Behún <kabel@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>

scripts/gen_ll_addressable_symbols.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 # SPDX-License-Identifier: GPL-2.0+
-# Copyright (C) 2020 Marek Behún <marek.behun@nic.cz>
+# Copyright (C) 2020 Marek Behún <kabel@kernel.org>
 
 # Generate __ADDRESSABLE(symbol) for every linker list entry symbol, so that LTO
 # does not optimize these symbols away