Enable bundled JRE for ARM64

Experimental, should allow ARM64 build to become more or less official from the next version.
The bundled JRE is AdoptOpenJDK's 8u191 (https://github.com/AdoptOpenJDK/openjdk8-binaries/releases/download/jdk8u191-b12/OpenJDK8U-jre_aarch64_linux_hotspot_8u191b12.tar.gz) which we are actively evaluating to replace Oracle's.

Author: facchinm

build/build.xml

@@ -71,11 +71,13 @@
   <property name="LINUX32_BUNDLED_JVM" value="none"/>
   <property name="LINUX64_BUNDLED_JVM" value="none"/>
   <property name="LINUXARM_BUNDLED_JVM" value="none"/>
+  <property name="LINUXAARCH64_BUNDLED_JVM" value="none"/>
   <condition property="linux-bundle-jvm-task" value="noop">
     <and>
       <equals arg1="${LINUX32_BUNDLED_JVM}" arg2="none"/>
       <equals arg1="${LINUX64_BUNDLED_JVM}" arg2="none"/>
       <equals arg1="${LINUXARM_BUNDLED_JVM}" arg2="none"/>
+      <equals arg1="${LINUXAARCH64_BUNDLED_JVM}" arg2="none"/>
     </and>
   </condition>
   <condition property="linux-bundle-jvm-task" value="bundle">
@@ -89,6 +91,9 @@
       <not>
         <equals arg1="${LINUXARM_BUNDLED_JVM}" arg2="none"/>
       </not>
+      <not>
+        <equals arg1="${LINUXAARCH64_BUNDLED_JVM}" arg2="none"/>
+      </not>
     </or>
   </condition>