libiio: BR2_PACKAGE_LIBIIO_TESTS requires BR2_PACKAGE_LIBIIO_XML_BACKEND

Signed-off-by: Paul Cercueil <paul.cercueil@analog.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/libiio/Config.in

@@ -63,6 +63,7 @@ comment "IIO Daemon needs a toolchain w/ threads"
 config BR2_PACKAGE_LIBIIO_TESTS
 	bool "Install test programs"
 	select BR2_PACKAGE_LIBIIO_LOCAL_BACKEND
+	select BR2_PACKAGE_LIBIIO_XML_BACKEND
 	select BR2_PACKAGE_LIBIIO_NETWORK_BACKEND
 	depends on BR2_TOOLCHAIN_HAS_THREADS
 	help