Bump buidlroot version to 2018.02.6

bsp/buildroot/package/gtest/Config.in

@@ -21,6 +21,34 @@ config BR2_PACKAGE_GTEST
 
 	  https://github.com/google/googletest
 
+if BR2_PACKAGE_GTEST
+
+config BR2_PACKAGE_GTEST_GMOCK
+	bool "gmock"
+	help
+	  Inspired by jMock, EasyMock, and Hamcrest, and designed with
+	  C++'s specifics in mind, Google C++ Mocking Framework (or
+	  Google Mock for short) is a library for writing and using C++
+	  mock classes.
+
+	  Google Mock:
+
+	    * lets you create mock classes trivially using simple
+	      macros, supports a rich set of matchers and actions,
+	    * handles unordered, partially ordered, or completely
+	      ordered expectations,
+	    * is extensible by users, and
+	    * works on Linux, Mac OS X, Windows, Windows Mobile, minGW,
+	      and Symbian.
+
+	  There are both host and target packages. The target one has
+	  include files required to compile the tests and the static
+	  libraries required to link/run them. The host package installs
+	  gmock_gen, a Python script used to generate code mocks.
+
+endif # BR2_PACKAGE_GTEST
+
 comment "gtest needs a toolchain w/ C++, wchar, threads"
 	depends on BR2_USE_MMU
-	depends on !BR2_USE_WCHAR || !BR2_TOOLCHAIN_HAS_THREADS || !BR2_INSTALL_LIBSTDCPP
+	depends on !BR2_USE_WCHAR || !BR2_TOOLCHAIN_HAS_THREADS || \
+		!BR2_INSTALL_LIBSTDCPP