package/libtommath: security bump to version 1.2.1
This is a bugfix release only containing the fix to a potential integer underflow
which got assigned CVE-2023-36328.
Signed-off-by: Francois Perrad <francois.perrad@gadz.org>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
(cherry picked from commit b7488b4d685657e7d724d18ab1e7982e2148e271)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>