package/cryptsetup: fix build failure with libgcrypt

The patch 0001-Add-check-program-for-symver-attribute.patch, introduced
in 683e8387d05c, touches a autoconf relevant file which causes a
configure --recheck in the make step without proper CONF_ENV.

Running autoreconf prevents this.

Signed-off-by: Moritz Bitsch <moritz@h6t.eu>
[yann.morin.1998@free.fr: add comment,  add commit reference]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/cryptsetup/cryptsetup.mk

@@ -17,6 +17,10 @@ CRYPTSETUP_LICENSE = GPL-2.0+ (programs), LGPL-2.1+ (library)
 CRYPTSETUP_LICENSE_FILES = COPYING COPYING.LGPL
 CRYPTSETUP_CPE_ID_VENDOR = cryptsetup_project
 CRYPTSETUP_INSTALL_STAGING = YES
+
+# 0001-Add-check-program-for-symver-attribute.patch
+CRYPTSETUP_AUTORECONF = YES
+
 CRYPTSETUP_CONF_ENV += LDFLAGS="$(TARGET_LDFLAGS) $(TARGET_NLS_LIBS)"
 CRYPTSETUP_CONF_OPTS += --enable-blkid --enable-libargon2