Bump buildroot to 2019.02

bsp/buildroot/package/libeastl/Config.in

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+config BR2_PACKAGE_LIBEASTL_ARCH_SUPPORTS
+	bool
+	default y if BR2_i386
+	default y if BR2_x86_64
+	default y if BR2_aarch64
+	default y if BR2_powerpc
+	default y if BR2_powerpc64
+
+config BR2_PACKAGE_LIBEASTL
+	bool "libeastl"
+	depends on BR2_PACKAGE_LIBEASTL_ARCH_SUPPORTS
+	depends on BR2_INSTALL_LIBSTDCPP
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # C++14
+	help
+	  EASTL stands for Electronic Arts Standard Template
+	  Library. EASTL stands for Electronic Arts Standard Template
+	  Library. It is a C++ template library of containers,
+	  algorithms, and iterators useful for runtime and tool
+	  development across multiple platforms.  It is an extensive
+	  and robust implementation that has an emphasis on high
+	  performance.
+
+	  https://github.com/electronicarts/EASTL
+
+comment "libeastl needs a toolchain w/ C++, gcc >= 4.9"
+	depends on BR2_PACKAGE_LIBEASTL_ARCH_SUPPORTS
+	depends on !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 || !BR2_INSTALL_LIBSTDCPP

bsp/buildroot/package/libeastl/libeastl.hash

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+sha256 9b3484553812b3ec3bad0857f7f675499c81f7cf4ac87e5f3b2acbe72e3a878a  libeastl-45469730d641868ce05433fff2e199510c7d45c3.tar.gz
+sha256 82c0243a1a62b8af01dab3bce6ed2b0852604bd508b85a561ba7d32480e598e3  LICENSE

bsp/buildroot/package/libeastl/libeastl.mk

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+################################################################################
+#
+# libeastl
+#
+################################################################################
+
+LIBEASTL_VERSION = 45469730d641868ce05433fff2e199510c7d45c3
+LIBEASTL_SITE = $(call github,electronicarts,EASTL,$(LIBEASTL_VERSION))
+LIBEASTL_LICENSE = BSD-3-Clause
+LIBEASTL_LICENSE_FILES = LICENSE
+LIBEASTL_INSTALL_STAGING = YES
+
+$(eval $(cmake-package))