Bump buildroot to 2019.02

bsp/buildroot/package/poco/0002-Add-support-for-m68000-1856.patch

@@ -0,0 +1,30 @@
+From e49753f7654dc62087e47731832d5992cc4d194e Mon Sep 17 00:00:00 2001
+From: Jochen Sprickerhof <github@jochen.sprickerhof.de>
+Date: Wed, 23 Aug 2017 16:50:51 +0200
+Subject: [PATCH] Add support for m68000 (#1856)
+
+Originally taken from
+
+https://github.com/google/double-conversion/commit/da11179623145f53b204105a93b8bbca431141da
+
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
+---
+ Foundation/src/utils.h | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/Foundation/src/utils.h b/Foundation/src/utils.h
+index 69cea1aca..a7bda0171 100644
+--- a/Foundation/src/utils.h
++++ b/Foundation/src/utils.h
+@@ -65,6 +65,8 @@
+     defined(__AARCH64EL__) || \
+     defined(nios2) || defined(__nios2) || defined(__nios2__)
+ #define DOUBLE_CONVERSION_CORRECT_DOUBLE_OPERATIONS 1
++#elif defined(__mc68000__)
++#undef DOUBLE_CONVERSION_CORRECT_DOUBLE_OPERATIONS
+ #elif defined(_M_IX86) || defined(__i386__) || defined(__i386)
+ #if defined(_WIN32)
+ // Windows uses a 64bit wide floating point stack.
+-- 
+2.14.4
+