Add QtLite into CI

QtLite allows user to select subset of Qt features.
This combined with static linking and link time optimization
produces up to 80% smaller QML application

Change-Id: Ied98a564cca39901091e751303341f83b672a631
Task-number: QTBUG-117638
Reviewed-by: Toni Saario <toni.saario@qt.io>
Reviewed-by: Samuli Piippo <samuli.piippo@qt.io>

coin/platform_configs/qtdeclarative.yaml

@@ -5,6 +5,7 @@ Include: [
     ios-tests.yaml,
     address_sanitizer_platforms.yaml,
     cmake_platforms_static_tests.yaml,
-    cmake_platforms_qemu_vxworks.yaml
+    cmake_platforms_qemu_vxworks.yaml,
+    qtlite.yaml
 ]
 Configurations: []