package/cryptsetup: needs iconv

iconv is a mantadory dependency since version 2.3.0 and
https://github.com/mbroz/cryptsetup/commit/62c872eb4942ec37a18a37ea7cca1749757ddbb6

Fixes:
 - http://autobuild.buildroot.org/results/a13c4b64e8ac673df07d8dc1d33fae42a4f80fff

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/cryptsetup/Config.in

@@ -11,6 +11,7 @@ config BR2_PACKAGE_CRYPTSETUP
 	select BR2_PACKAGE_UTIL_LINUX_LIBBLKID
 	select BR2_PACKAGE_JSON_C
 	select BR2_PACKAGE_LIBARGON2
+	select BR2_PACKAGE_LIBICONV if !BR2_ENABLE_LOCALE
 	help
 	  This tool helps manipulate dm-crypt and luks partitions for
 	  on-disk encryption.

package/cryptsetup/cryptsetup.mk

@@ -9,6 +9,7 @@ CRYPTSETUP_VERSION = $(CRYPTSETUP_VERSION_MAJOR).3
 CRYPTSETUP_SOURCE = cryptsetup-$(CRYPTSETUP_VERSION).tar.xz
 CRYPTSETUP_SITE = $(BR2_KERNEL_MIRROR)/linux/utils/cryptsetup/v$(CRYPTSETUP_VERSION_MAJOR)
 CRYPTSETUP_DEPENDENCIES = lvm2 popt util-linux host-pkgconf json-c libargon2 \
+	$(if $(BR2_PACKAGE_LIBICONV),libiconv) \
 	$(TARGET_NLS_DEPENDENCIES)
 CRYPTSETUP_LICENSE = GPL-2.0+ (programs), LGPL-2.1+ (library)
 CRYPTSETUP_LICENSE_FILES = COPYING COPYING.LGPL