Fix support status

* 17 and 20 are supported
* darwin-aarch64 is supported

Author: gilles-duboscq

sdk/mx.sdk/mx_sdk_vm_impl.py

@@ -2399,17 +2399,13 @@ def _format_properties(data):
 
 
 def _get_component_stability(component):
-    if _src_jdk_version not in (11, 17):
-        return "experimental"
-    if mx.is_darwin() and mx.get_arch() == 'aarch64':
+    if _src_jdk_version not in (17, 20):
         return "experimental"
     return component.stability
 
 
 def _get_core_stability():
-    if _src_jdk_version not in (11, 17):
-        return "experimental"
-    if mx.is_darwin() and mx.get_arch() == 'aarch64':
+    if _src_jdk_version not in (17, 20):
         return "experimental"
     return "supported"