#1361 use CDT openocd instead of gnu mcu

Which is the same as the old one but moved to cdt.
This way it is in the eclipse update sites

Author: jantje

io.sloeber.product/arduino.product

@@ -26,11 +26,11 @@ https://github.com/sloeber/arduino-eclipse-plugin/graphs/contributors
 --launcher.defaultAction openFile
 --launcher.appendVmargs
       </programArgs>
-      <vmArgs>-Dosgi.requiredJavaVersion=11
--Dorg.eclipse.update.reconcile=false
--Dlog4j.configuration=log4j/log4j.xml
--Xms256m
--Xmx1024m
+      <vmArgs>-Dosgi.requiredJavaVersion=11
+-Dorg.eclipse.update.reconcile=false
+-Dlog4j.configuration=log4j/log4j.xml
+-Xms256m
+-Xmx1024m
 --add-modules=ALL-SYSTEM
       </vmArgs>
       <vmArgsMac>-XstartOnFirstThread -Dorg.eclipse.swt.internal.carbon.smallFonts
@@ -208,7 +208,6 @@ United States, other countries, or both.
    </plugins>
 
    <features>
-      <feature id="ilg.gnumcueclipse.debug.gdbjtag.openocd.feature" installMode="root"/>
       <feature id="io.sloeber.feature" installMode="root"/>
       <feature id="org.eclipse.cdt.autotools" installMode="root"/>
       <feature id="org.eclipse.cdt.gdb" installMode="root"/>
@@ -248,6 +247,7 @@ United States, other countries, or both.
       <feature id="org.eclipse.rse.ssh" installMode="root"/>
       <feature id="org.eclipse.rse.telnet" installMode="root"/>
       <feature id="org.eclipse.rse" installMode="root"/>
+      <feature id="org.eclipse.embedcdt.debug.gdbjtag.openocd" installMode="root"/>
    </features>
 
    <configurations>