qt53d: fix install issue with qt5.6

Both plugins `geometryloaders' and `renderplugins' are available since
Qt 5.9.

Fixes:

	>>> qt53d 5.6.3 Installing to target
	cp -dpf /home/gportay/src/buildroot/output/host/arm-buildroot-linux-gnueabihf/sysroot/usr/lib/libQt53D*.so.*
/home/gportay/src/buildroot/output/target/usr/lib
	cp -dpfr /home/gportay/src/buildroot/output/host/arm-buildroot-linux-gnueabihf/sysroot/usr/lib/qt/plugins/geometryloaders
/home/gportay/src/buildroot/output/target/usr/lib/qt/plugins
	cp: cannot stat '/home/gportay/src/buildroot/output/host/arm-buildroot-linux-gnueabihf/sysroot/usr/lib/qt/plugins/geometryloaders': No such file or directory
	package/pkg-generic.mk:310: recipe for target '/home/gportay/src/buildroot/output/build/qt53d-5.6.3/.stamp_target_installed' failed
	make[2]: *** [/home/gportay/src/buildroot/output/build/qt53d-5.6.3/.stamp_target_installed] Error 1

Signed-off-by: Gaël PORTAY <[email protected]>
Signed-off-by: Gaël PORTAY &lt;<a href="mailto:[email protected]" target="_blank" rel="noreferrer">[email protected]</a>&gt;<br>
Signed-off-by: Thomas Petazzoni <[email protected]>

package/qt5/qt53d/qt53d.mk

@@ -37,13 +37,19 @@ endef
 endif
 
 ifeq ($(BR2_STATIC_LIBS),)
-define QT53D_INSTALL_TARGET_CMDS
-	cp -dpf $(STAGING_DIR)/usr/lib/libQt53D*.so.* $(TARGET_DIR)/usr/lib
+ifeq ($(BR2_PACKAGE_QT5_VERSION_LATEST),y)
+# Available since 5.9
+define QT53D_INSTALL_TARGET_LATEST
 	cp -dpfr $(STAGING_DIR)/usr/lib/qt/plugins/geometryloaders $(TARGET_DIR)/usr/lib/qt/plugins
 	cp -dpfr $(STAGING_DIR)/usr/lib/qt/plugins/renderplugins $(TARGET_DIR)/usr/lib/qt/plugins
+endef
+endif
+define QT53D_INSTALL_TARGET_CMDS
+	cp -dpf $(STAGING_DIR)/usr/lib/libQt53D*.so.* $(TARGET_DIR)/usr/lib
 	cp -dpfr $(STAGING_DIR)/usr/lib/qt/plugins/sceneparsers $(TARGET_DIR)/usr/lib/qt/plugins
 	cp -dpfr $(STAGING_DIR)/usr/qml/Qt3D $(TARGET_DIR)/usr/qml
 	cp -dpfr $(STAGING_DIR)/usr/qml/QtQuick $(TARGET_DIR)/usr/qml
+	$(QT53D_INSTALL_TARGET_LATEST)
 	$(QT53D_INSTALL_TARGET_EXAMPLES)
 endef
 endif