Bump buildroot to 2019.02

bsp/buildroot/toolchain/toolchain-external/toolchain-external-arm-arm/Config.in

@@ -0,0 +1,30 @@
+comment "Arm toolchains available for Cortex-A + EABIhf"
+	depends on BR2_arm
+	depends on !BR2_ARM_CPU_ARMV7A || !BR2_ARM_EABIHF
+	depends on !BR2_STATIC_LIBS
+
+config BR2_TOOLCHAIN_EXTERNAL_ARM_ARM
+	bool "Arm ARM 2018.11"
+	depends on BR2_arm
+	depends on BR2_ARM_CPU_ARMV7A || BR2_ARM_CPU_ARMV8A
+	depends on BR2_HOSTARCH = "x86_64"
+	depends on BR2_ARM_EABIHF
+	depends on !BR2_STATIC_LIBS
+	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
+	select BR2_TOOLCHAIN_HAS_SSP
+	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
+	select BR2_INSTALL_LIBSTDCPP
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_20
+	select BR2_TOOLCHAIN_GCC_AT_LEAST_8
+	select BR2_TOOLCHAIN_HAS_FORTRAN
+	help
+	  Arm toolchain for the ARM architecture. It uses GCC 8.2.1,
+	  GDB 8.1.1, glibc 2.28, Binutils 2.30. It generates code that
+	  runs on all Cortex-A profile devices, but tuned for the
+	  Cortex-A9. The code generated uses the hard floating point
+	  calling convention, and uses the VFPv3-D16 FPU instructions.
+
+	  This is the same toolchain that was previously distributed by
+	  Linaro.
+
+	  https://developer.arm.com/open-source/gnu-toolchain