tftpd: install TFTP client as well

This patch installs TFTP client as well and overrides BusyBox
implementations if BusyBox is enabled.

[Thomas: fix typo SYSKLOGD_DEPENDENCIES -> TFTPD_DEPENDENCIES noticed
by Baruch.]

Signed-off-by: Kelvin Cheung <keguang.zhang@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/tftpd/tftpd.mk

@@ -13,7 +13,13 @@ ifneq ($(BR2_INET_IPV6),y)
 TFTPD_CONF_OPTS += --without-ipv6
 endif
 
+# Override BusyBox implementations if BusyBox is enabled.
+ifeq ($(BR2_PACKAGE_BUSYBOX),y)
+TFTPD_DEPENDENCIES += busybox
+endif
+
 define TFTPD_INSTALL_TARGET_CMDS
+	$(INSTALL) -D $(@D)/tftp/tftp $(TARGET_DIR)/usr/bin/tftp
 	$(INSTALL) -D $(@D)/tftpd/tftpd $(TARGET_DIR)/usr/sbin/tftpd
 	$(INSTALL) -D package/tftpd/S80tftpd-hpa $(TARGET_DIR)/etc/init.d/
 endef