Bump buildroot to 2019.02

bsp/buildroot/package/openblas/0001-Makefile.arm-remove-march-flags.patch

@@ -0,0 +1,55 @@
+From e6c498f68b61057fb5505e41c3858c2b5d223227 Mon Sep 17 00:00:00 2001
+From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+Date: Sun, 7 Aug 2016 23:20:00 +0200
+Subject: [PATCH] Makefile.arm: remove -march flags
+
+The provided -march flags, especially for ARMv5 and ARMv6 may not
+necessarily match the needed ones: for ARMv5, it might be armv5,
+armv5te, armv5t, etc. If the wrong one is used, the incorrect toolchain
+sysroot can be used in a multilib toolchain.
+
+Therefore, let the user building OpenBLAS pass the appropriate -march
+flag.
+
+The other flags, such as -mfpu=vfp or -mfloat-abi=hard are kept, as they
+are actually required for the build to proceed (OpenBLAS uses VFP
+instructions, and assume an EABIhf ABI).
+
+[Peter: update for v0.2.20]
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
+---
+ Makefile.arm | 13 ++++---------
+ 1 file changed, 4 insertions(+), 9 deletions(-)
+
+diff --git a/Makefile.arm b/Makefile.arm
+index eedd39b7..b5d80f8e 100644
+--- a/Makefile.arm
++++ b/Makefile.arm
+@@ -1,7 +1,7 @@
+ ifeq ($(CORE), $(filter $(CORE),ARMV7 CORTEXA9 CORTEXA15))
+ ifeq ($(OSNAME), Android)
+-CCOMMON_OPT += -mfpu=neon  -march=armv7-a
+-FCOMMON_OPT += -mfpu=neon  -march=armv7-a
++CCOMMON_OPT += -mfpu=neon
++FCOMMON_OPT += -mfpu=neon
+ else
+ CCOMMON_OPT += -mfpu=vfpv3 -march=armv7-a
+ FCOMMON_OPT += -mfpu=vfpv3 -march=armv7-a
+@@ -9,11 +9,6 @@ endif
+ endif
+ 
+ ifeq ($(CORE), ARMV6)
+-CCOMMON_OPT += -mfpu=vfp -march=armv6
+-FCOMMON_OPT += -mfpu=vfp -march=armv6
+-endif
+-
+-ifeq ($(CORE), ARMV5)
+-CCOMMON_OPT += -march=armv5
+-FCOMMON_OPT += -march=armv5
++CCOMMON_OPT += -mfpu=vfp
++FCOMMON_OPT += -mfpu=vfp
+ endif
+-- 
+2.11.0
+