CMake: Pass STATIC types on cmake execution

Was submitted by mistake for 4.0 (and reverted). Resubmit for master.

Change-Id: Ie3401d009044a46af7fac314d1f29975543a44b0
(cherry picked from commit 0043c721c2)
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>

src/plugins/cmakeprojectmanager/builddirmanager.cpp

@@ -82,6 +82,9 @@ static QStringList toArguments(const CMakeConfig &config, const ProjectExplorer:
         case CMakeConfigItem::INTERNAL:
             a.append(QLatin1String(":INTERNAL="));
             break;
+        case CMakeConfigItem::STATIC:
+            a.append(QLatin1String(":STATIC="));
+            break;
         }
         a.append(i.expandedValue(k));