gnupg2: bump version to 2.1.20

Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/gnupg2/gnupg2.hash

@@ -1,4 +1,4 @@
-# From https://lists.gnupg.org/pipermail/gnupg-announce/2017q1/000402.html
-sha1 10a088a6716789ac5c5cce2776952d8f4a5c57fc  gnupg-2.1.19.tar.bz2
+# From https://lists.gnupg.org/pipermail/gnupg-announce/2017q2/000404.html
+sha1 500ddae8e4225ae2e300934090f9b9a427b8def1  gnupg-2.1.20.tar.bz2
 # Calculated based on the hash above
-sha256 46cced1f5641ce29cc28250f52fadf6e417e649b3bfdec49a5a0d0b22a639bf0  gnupg-2.1.19.tar.bz2
+sha256 24cf9a69369be64a9f6f8cc11a1be33ab7780ad77a6a1b93719438f49f69960d  gnupg-2.1.20.tar.bz2

package/gnupg2/gnupg2.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-GNUPG2_VERSION = 2.1.19
+GNUPG2_VERSION = 2.1.20
 GNUPG2_SOURCE = gnupg-$(GNUPG2_VERSION).tar.bz2
 GNUPG2_SITE = ftp://ftp.gnupg.org/gcrypt/gnupg
 GNUPG2_LICENSE = GPL-3.0+