libzip: bump version to 1.2.0

It's a major release, but the API seems to be mostly
backwards-compatible. The only package depending on this library in
buildroot is libsigrok and it builds fine.

Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/libzip/libzip.hash

@@ -1,2 +1,2 @@
 # Locally calculated
-sha256	7cfbbc2c540e154b933b6e9ec781e2671086bd8114eb744ae1a1ade34d2bb6bb	libzip-0.11.2.tar.xz
+sha256	ffc0764395fba3d45dc5a6e32282788854618b9e9838337f8218b596007f1376	libzip-1.2.0.tar.xz

package/libzip/libzip.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-LIBZIP_VERSION = 0.11.2
+LIBZIP_VERSION = 1.2.0
 LIBZIP_SITE = http://www.nih.at/libzip
 LIBZIP_SOURCE = libzip-$(LIBZIP_VERSION).tar.xz
 LIBZIP_LICENSE = BSD-3-Clause