xl2tp: use $(TARGET_CONFIGURE_OPTS) when calling $(MAKE)

Signed-off-by: Gustavo Zacarias <gustavo.zacarias@free-electrons.com>
[Thomas: fix commit title.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/xl2tp/xl2tp.mk

@@ -20,7 +20,7 @@ define XL2TP_BUILD_CMDS
 endef
 
 define XL2TP_INSTALL_TARGET_CMDS
-	$(MAKE) DESTDIR=$(TARGET_DIR) PREFIX=/usr -C $(@D) install
+	$(TARGET_CONFIGURE_OPTS) $(MAKE) DESTDIR=$(TARGET_DIR) PREFIX=/usr -C $(@D) install
 endef
 
 $(eval $(generic-package))