package/newt: bump version to 0.52.21

Changelog: https://pagure.io/newt/blob/master/f/CHANGES



Removed MAKE1 after upstream fixed parallel build.

Added upstream provided hashes and license hash.

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>