package/iucode-tool: don't override dependencies

Don't override IUCODE_TOOL_DEPENDENCIES in a conditional

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
(cherry picked from commit 0be1b16269ce271cdd213b0ed229e27976484f11)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/iucode-tool/iucode-tool.mk

@@ -7,9 +7,7 @@
 IUCODE_TOOL_VERSION = 2.3.1
 IUCODE_TOOL_SOURCE = iucode-tool_$(IUCODE_TOOL_VERSION).tar.xz
 IUCODE_TOOL_SITE = https://gitlab.com/iucode-tool/releases/raw/master
-ifeq ($(BR2_PACKAGE_ARGP_STANDALONE),y)
-IUCODE_TOOL_DEPENDENCIES = argp-standalone
-endif
+IUCODE_TOOL_DEPENDENCIES = $(if $(BR2_PACKAGE_ARGP_STANDALONE),argp-standalone)
 IUCODE_TOOL_LICENSE = GPL-2.0+
 IUCODE_TOOL_LICENSE_FILES = COPYING
 IUCODE_TOOL_CPE_ID_VENDOR = iucode-tool_project