Bump buildroot to 2019.02

bsp/buildroot/package/libbsd/0001-flopen-fix-build-with-musl-libc.patch

@@ -0,0 +1,40 @@
+From 8575450b9c1226fc38196b29e33c67f2b58cacf5 Mon Sep 17 00:00:00 2001
+From: Baruch Siach <baruch@tkos.co.il>
+Date: Tue, 5 Jun 2018 19:18:47 +0300
+Subject: [PATCH] flopen: fix build with musl libc
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Commit 993828d84ee (Add flopenat() function from FreeBSD) dropped the
+fcntl.h header. This breaks the build with musl libc:
+
+flopen.c: In function ‘vflopenat’:
+flopen.c:60:14: error: ‘O_CREAT’ undeclared (first use in this function)
+  if (flags & O_CREAT) {
+              ^~~~~~~
+
+Restore the fcntl.h header include to fix the build.
+
+Signed-off-by: Baruch Siach <baruch@tkos.co.il>
+---
+Upstream status: sent to libbsd@lists.freedesktop.org
+
+ src/flopen.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/src/flopen.c b/src/flopen.c
+index b9972c94ec90..ff20d074445b 100644
+--- a/src/flopen.c
++++ b/src/flopen.c
+@@ -32,6 +32,7 @@
+ #include <sys/stat.h>
+ 
+ #include <errno.h>
++#include <fcntl.h>
+ #include <stdarg.h>
+ #include <unistd.h>
+ 
+-- 
+2.17.1
+