Bump buildroot to 2019.02

bsp/buildroot/package/libressl/0002-Fix-build-with-musl-and-older-Linux-kernel.patch

@@ -1,38 +0,0 @@
-From: Baruch Siach <baruch@tkos.co.il>
-Date: Fri, 29 Sep 2017 10:06:52 +0300
-Subject: [PATCH] Fix build with musl and older Linux kernel
-
-The musl libc carries its own copy of Linux system calls. When building
-with Linux headers older than v3.17, musl provides SYS_getrandom
-definition, but not GRND_NONBLOCK. This causes build failure for
-libressl and openntpd:
-
-getentropy_linux.c: In function 'getentropy_getrandom':
-getentropy_linux.c:205:42: error: 'GRND_NONBLOCK' undeclared (first use in this function)
-   ret = syscall(SYS_getrandom, buf, len, GRND_NONBLOCK);
-                                          ^~~~~~~~~~~~~
-
-Define GRND_NONBLOCK locally when its definition is missing to fix the
-build. There should be no run-time effect. Older kernels return ENOSYS
-for unsupported syscall().
-
-[ from upstream pull request with file location changed ]
-Signed-off-by: Baruch Siach <baruch@tkos.co.il>
----
-Upstream status: https://github.com/libressl-portable/openbsd/pull/82
-
-diff -Nuar libressl-2.5.5-orig/crypto/compat/getentropy_linux.c libressl-2.5.5/crypto/compat/getentropy_linux.c
---- libressl-2.5.5-orig/crypto/compat/getentropy_linux.c	2017-07-09 13:59:48.000000000 +0300
-+++ libressl-2.5.5/crypto/compat/getentropy_linux.c	2017-09-29 10:03:32.447958829 +0300
-@@ -194,6 +194,11 @@
- }
- 
- #ifdef SYS_getrandom
-+
-+#ifndef GRND_NONBLOCK
-+#define GRND_NONBLOCK   0x0001
-+#endif
-+
- static int
- getentropy_getrandom(void *buf, size_t len)
- {

bsp/buildroot/package/libressl/libressl.hash

@@ -1,2 +1,4 @@
 # From https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/SHA256
-sha256	859edfc71019d27c448fe148e679afdd972a0baa91b21f02b2b2f5f8a84ddd2a	libressl-2.6.5.tar.gz
+sha256 9b640b13047182761a99ce3e4f000be9687566e0828b4a72709e9e6a3ef98477  libressl-2.8.3.tar.gz
+# Locally computed
+sha256 5c63613f008f16a9c0025c096bbd736cecf720494d121b5c5203e0ec6e5955b1  COPYING

bsp/buildroot/package/libressl/libressl.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-LIBRESSL_VERSION = 2.6.5
+LIBRESSL_VERSION = 2.8.3
 LIBRESSL_SITE = https://ftp.openbsd.org/pub/OpenBSD/LibreSSL
 LIBRESSL_LICENSE = ISC (new additions), OpenSSL or SSLeay (original OpenSSL code)
 LIBRESSL_LICENSE_FILES = COPYING