libsodium: bump to version 1.0.15

Signed-off-by: Adrien Gallouët <adrien@gallouet.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/libsodium/libsodium.hash

@@ -1,2 +1,3 @@
 # Locally calculated after checking pgp signature
-sha256 9c13accb1a9e59ab3affde0e60ef9a2149ed4d6e8f99c93c7a5b97499ee323fd  libsodium-1.0.13.tar.gz
+sha256 fb6a9e879a2f674592e4328c5d9f79f082405ee4bb05cb6e679b90afe9e178f4  libsodium-1.0.15.tar.gz
+sha256 6faf327c97dca6da69acefc6d3969d7bffb70a24f0707874870fdcfd6b0acf58  LICENSE

package/libsodium/libsodium.mk

@@ -4,8 +4,8 @@
 #
 ################################################################################
 
-LIBSODIUM_VERSION = 1.0.13
-LIBSODIUM_SITE = https://download.libsodium.org/libsodium/releases
+LIBSODIUM_VERSION = 1.0.15
+LIBSODIUM_SITE = https://github.com/jedisct1/libsodium/releases/download/$(LIBSODIUM_VERSION)
 LIBSODIUM_LICENSE = ISC
 LIBSODIUM_LICENSE_FILES = LICENSE
 LIBSODIUM_INSTALL_STAGING = YES