package/matio: Bump version to 1.5.21
Signed-off-by: Gwenhael Goavec-Merou <gwenhael.goavec-merou@trabucayre.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
(cherry picked from commit 4047e10ed6e20492bae572d4929eaa5d67eed746)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>