package/qt5wayland: fix installation with Qt 5.6

Install QtWayland only if the latest Qt version is selected. It does not
exist in version 5.6.

Signed-off-by: Carlos Santos <unixmania@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit 21783d8403f4f41bd97014768e08f9fc355adf87)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/qt5/qt5wayland/qt5wayland.mk

@@ -52,7 +52,7 @@ define QT5WAYLAND_INSTALL_COMPOSITOR
 	cp -dpf $(STAGING_DIR)/usr/lib/libQt5Compositor.so* $(TARGET_DIR)/usr/lib
 endef
 endif
-ifeq ($(BR2_PACKAGE_QT5DECLARATIVE_QUICK),y)
+ifeq ($(BR2_PACKAGE_QT5DECLARATIVE_QUICK)$(BR2_PACKAGE_QT5_VERSION_LATEST),yy)
 define QT5WAYLAND_INSTALL_COMPOSITOR_QMLS
 	cp -dpfr $(STAGING_DIR)/usr/qml/QtWayland $(TARGET_DIR)/usr/qml/
 endef