Updated libsodium dependency.

depends/packages/libsodium.mk

@@ -2,7 +2,7 @@ package=libsodium
 $(package)_version=1.0.18
 $(package)_download_path=https://download.libsodium.org/libsodium/releases/
 $(package)_file_name=$(package)-$($(package)_version)-stable.tar.gz
-$(package)_sha256_hash=7047fc20e7692bbfa656a5df825983ad7c7640eaec3926331d14aa2ae1d542ea
+$(package)_sha256_hash=51ff569103105b78b49df53a861fd0be5ed1cb1522440c84dfe63b39cfb97bd4
 
 define $(package)_set_vars
 $(package)_config_opts_mingw32+=CFLAGS="-Ofast -fomit-frame-pointer -march=pentium3 -mtune=westmere"
@@ -19,4 +19,3 @@ endef
 define $(package)_stage_cmds
   $(MAKE) DESTDIR=$($(package)_staging_dir) install
 endef
-