package/systemd: Disable the test coverage

Signed-off-by: Maxime Hadjinlian <maxime.hadjinlian@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/systemd/systemd.mk

@@ -36,6 +36,7 @@ SYSTEMD_CONF_OPTS += \
 	--disable-gnuefi \
 	--disable-ldconfig \
 	--disable-tests \
+	--disable-coverage \
 	--with-default-dnssec=no \
 	--without-python