Adjust the modules we include in ELN

Not all of the modules built should be included in the repos
by default.  Curate this to specific modules for now and
also move ghc to CRB

Signed-off-by: Josh Boyer <jwboyer@redhat.com>

variants.xml

@@ -159,7 +159,17 @@
             <environment display_order="4">workstation-product-environment</environment>
         </environments>
         <modules>
-            <module>*</module>
+            <module>httpd:2.4</module>
+            <module>mariadb:10.5</module>
+            <module>nginx:1.18</module>
+            <module>nodejs:12</module>
+            <module>nodejs:14</module>
+            <module>perl:5.30</module>
+            <module>perl:5.32</module>
+            <module>ruby:2.5</module>
+            <module>subversion:1.14</module>
+            <module>swig:4.0</module>
+            <module>varnish:6.0</module>
         </modules>
     </variant>
     <variant id="CRB" name="CodeReady Builder" type="variant">
@@ -173,6 +183,9 @@
         <groups>
             <group default="true">crb</group>
         </groups>
+	<modules>
+	    <module>ghc:9.0</module>
+        </modules>
     </variant>