License-Update: changed date and added info about existence LICENSE files
in libtomcrypt and libtommath folders
(From OE-Core rev: 0954933a7cc61307df1a840318c9a553050ecdb6)
Signed-off-by: Andrej Valek <andrej.valek@siemens.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>