libvpx security update

1.3.0-8 - Fix for CVE-2020-0034 - Resolves: rhbz1823909 1.3.0-7 - Fix for CVE-2019-9232 and CVE-2019-9433 - Resolves: rhbz1796085, rhbz1796099 1.3.0-6 - Fix for CVE-2017-0393 - Resolves: rhbz1779498 1.3.0-4 - fix Illegal Instruction abort 1.3.0-3 - update library symbol list for 1.3.0 from Debian...