Enable jdk11 systemtest build on aarch64 linux 
Enable jdk11 systemtest build on aarch64 linux 

Signed-off-by: Mesbah <64603f5315cadd8e6ebf501e58fd2fd15a8aba9c@ca.ibm.com>
karianna/openjdk-build,karianna/openjdk-build,AdoptOpenJDK/openjdk-build,AdoptOpenJDK/openjdk-build