Update release notes to 20.0.2+9
Update system crypto policy & FIPS patch from new fips-20u tree
Update generate_tarball.sh ICEDTEA_VERSION
Update CLDR reference data following update to 42 (Rocky Mountain-Normalzeit => Rocky-Mountain-Normalzeit)
Dropped JDK-8295447, JDK-8296239 & JDK-8299439 patches now upstream
Adapted rh1750419-redhat_alt_java.patch
Related: RHEL-45217
