Fix for BZ-1203469 was incomplete.

Initial fix failed to assing the newly detected product type to the
productType variable. This resulted in all discovered AS7 instances
being detected as generic AS7.

(cherry picked from commit 8308e02)

modules/plugins/jboss-as-7/src/main/java/org/rhq/modules/plugins/jbossas7/BaseProcessDiscovery.java

@@ -192,7 +192,7 @@ protected DiscoveredResourceDetails buildResourceDetails(ResourceDiscoveryContex
         pluginConfig.setSimpleValue("realm", hostConfig.getManagementSecurityRealm());
         JBossProductType productType = JBossProductType.AS;
         try {
-            JBossProductType.determineJBossProductType(homeDir);
+            productType = JBossProductType.determineJBossProductType(homeDir);
         } catch (Exception e) {
             log.warn("Managed product type for [" + homeDir + "] could not be determined or is unsupported: " + e.getMessage(), e); //$NON-NLS-1$ //$NON-NLS-2$
         }