package/intel-microcode: security bump to version 20210216

package/intel-microcode: security bump to version 20210216

Fixes the following security issues:

- CVE-2020-8696: Description: Improper removal of sensitive information
  before storage or transfer in some Intel(R) Processors may allow an
  authenticated user to potentially enable information disclosure via local
  access

- CVE-2020-8698: Description: Improper isolation of shared resources in some
  Intel(R) Processors may allow an authenticated user to potentially enable
  information disclosure via local access

https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00381.html

License file updated with the new year, so change hash accordingly.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
[yann.morin.1998@free.fr: explain license hash change]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>