[source] tools/libressl: Update to 2.5.1

[LEDE Commits]

blogic pushed a commit to source.git, branch master:
https://git.lede-project.org/e45ee66149688747a337a470a19beb182ce4dd61

commit e45ee66149688747a337a470a19beb182ce4dd61
Author: Daniel Engberg <daniel.engberg.lists at pyret.net>
AuthorDate: Tue Mar 14 07:46:39 2017 +0100

    tools/libressl: Update to 2.5.1
    
    Update libressl to 2.5.1
    
    Signed-off-by: Daniel Engberg <daniel.engberg.lists at pyret.net>
---
 tools/libressl/Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/libressl/Makefile b/tools/libressl/Makefile
index be6a48b..9338896 100644
--- a/tools/libressl/Makefile
+++ b/tools/libressl/Makefile
@@ -8,8 +8,8 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=libressl
-PKG_VERSION:=2.5.0
-PKG_HASH:=8652bf6b55ab51fb37b686a3f604a2643e0e8fde2c56e6a936027d12afda6eae
+PKG_VERSION:=2.5.1
+PKG_HASH:=f71ae0a824b78fb1a47ffa23c9c26e9d96c5c9b29234eacedce6b4c7740287cd
 PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz