package/swupdate: use package make install for target install

This ensures all tools/libraries will be properly installed.

Update SWUPDATE_BUILD_CMDS param ordering for consistency.

Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
(cherry picked from commit 08de8f500e6223a67df96eaf869766a97b4d039f)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/swupdate/swupdate.mk

@@ -168,11 +168,12 @@ define SWUPDATE_KCONFIG_FIXUP_CMDS
 endef
 
 define SWUPDATE_BUILD_CMDS
-	$(TARGET_MAKE_ENV) $(SWUPDATE_MAKE_ENV) $(MAKE) $(SWUPDATE_MAKE_OPTS) -C $(@D)
+	$(TARGET_MAKE_ENV) $(SWUPDATE_MAKE_ENV) $(MAKE) -C $(@D) $(SWUPDATE_MAKE_OPTS)
 endef
 
 define SWUPDATE_INSTALL_TARGET_CMDS
-	$(INSTALL) -D -m 0755 $(@D)/swupdate $(TARGET_DIR)/usr/bin/swupdate
+	$(TARGET_MAKE_ENV) $(SWUPDATE_MAKE_ENV) $(MAKE) -C $(@D) \
+		$(SWUPDATE_MAKE_OPTS) DESTDIR=$(TARGET_DIR) install
 	$(if $(BR2_PACKAGE_SWUPDATE_INSTALL_WEBSITE), \
 		mkdir -p $(TARGET_DIR)/var/www/swupdate; \
 		cp -dpfr $(@D)/examples/www/v2/* $(TARGET_DIR)/var/www/swupdate)